Isntree Hyper ACID4 30 Serum

Isntree

Hyper ACID4 30 Serum

face serum

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Fit by skin type

General, ingredient-based — not your personalized match.

Dry
52%
Combination (dry)
52%
Balanced
82%
Combination (oily)
88%
Oily
88%

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26
Ingredients
9
Benefits
4
Actives
Find Dupes

The Isntree Hyper ACID4 AHA BHA PHA LHA 30 Serum offers a rejuvenating skincare experience with its potent blend of exfoliating acids and nourishing ingredients. This rinse-off serum is designed to gently exfoliate the skin, effectively removing dead cells and excess sebum while unclogging pores. With a robust combination of AHA, BHA, PHA, and LHA at a concentration of 30%, the serum promotes a smoother and clearer complexion.

Key Insights

Benefits

9
Anti-Acne
Anti-Aging
Blackhead Reducing
Evens Skin Tone
Hydration
Oil Control
Pore Minimizer
Smooths Bumpy Skin
Soothing

Active Ingredients

4
AHA BHA PHA Vitamin B3 (niacinamide)

Full Ingredients

26 total
WATER GLUCONOLACTONE PHA LACTIC ACID AHA METHYLPROPANEDIOL GLYCOLIC ACID AHA POTASSIUM HYDROXIDE 1,2-HEXANEDIOL DIETHOXYETHYL SUCCINATE GLYCERIN XANTHAN GUM POLYGLYCERYL-10 LAURATE ACACIA SENEGAL GUM POLYGLYCERYL-10 MYRISTATE GLYCERYL CAPRYLATE NIACINAMIDE Vitamin B3 (niacinamide) SALICYLIC ACID BHA ALLANTOIN DISODIUM EDTA ETHYLHEXYLGLYCERIN PEAT WATER CITRIC ACID AHA HYDROXYPROPYL METHYLCELLULOSE CAPRYLOYL SALICYLIC ACID BUTYLENE GLYCOL POTASSIUM SORBATE CHARCOAL POWDER

About Hyper ACID4 30 Serum

Overview

Hyper ACID4 30 Serum is a lightweight serum from Isntree. The formula is built mainly around hydration, cell renewal and brightening and tone. The ingredient list runs to 26 ingredients, each broken down in full below.

Texture and finish

By its ingredient list the formula reads as light: water and humectants lead, with emollients kept lower in the order. Hydration is handled by Methylpropanediol, Glycerin and Ethylhexylglycerin, humectants that pull water into the upper layers of skin rather than sealing it there.

What the formula does

Hydration: High. Ingredients that pull and hold water in the upper layers of skin, and here that comes from Methylpropanediol, Glycerin, Ethylhexylglycerin and Butylene Glycol.

Cell renewal: High. Retinoids, acids and enzymes that speed surface turnover, and here that comes from Gluconolactone, Lactic Acid, Glycolic Acid and Salicylic Acid.

Brightening: High. Ingredients that act on uneven tone and post-inflammatory marks, and here that comes from Niacinamide, Gluconolactone, Lactic Acid and Glycolic Acid.

Who it suits

On richness alone it suits Balanced, Combination (oily) and Oily skin best, and is the least natural fit for Dry and Combination (dry) skin. Nothing in the list is flagged as a common irritant, which is a reasonable starting point for reactive skin — though a patch test is still the only way to know.

What it does not target

The formula contributes little or nothing on barrier support, antioxidant protection and firmness signalling. That is not a fault — most products are not meant to do everything — but if one of those is your priority, this is not the product that will address it.

What is not in it

Reading the full list, the formula is fragrance-free, essential-oil-free, no drying alcohol, paraben-free, silicone-free and microplastic-free. Those claims come from the ingredient list itself, not from the packaging.

Where it fits in a routine

It can be used morning and evening. In a routine it goes after toner, before moisturiser. Apply to clean, dry skin and give it a minute to absorb before the next layer. Introduce one new treatment at a time so you can identify what is working.

This summary is generated from the product's ingredient list. It is not a review, it is not the brand's own marketing claims, and it does not replace advice from a dermatologist.

Pros and cons

Drawn purely from the ingredient list

Pros

  • No fragrance or declared allergens
  • No essential oils
  • No drying alcohol
  • Silicone-free
  • No microplastics
  • Strong humectant content for hydration
  • No common irritants flagged in the list

Things to know

  • 3 ingredients could feed malassezia (fungal acne)
  • Contains ingredients usually flagged for review during pregnancy

Which skin types it suits

Scored on how rich or light the formula reads from its INCI order.

Suitable for

  • Balanced skin
  • Combination (oily) skin
  • Oily skin

Less suitable for

  • Dry skin
  • Combination (dry) skin

Sensitive skin

No ingredient in this formula carries a common-irritant flag, making it a reasonable option for reactive skin. A patch test is still recommended, as individual skin reactivity varies.

Skin concerns

Based on the curated benefits documented for this product's ingredients.

Helps with

  • Hydration 8 ingredients

    Attracts and locks in moisture to keep skin plump and dewy

  • Anti-Aging 6 ingredients

    Boosts collagen and cell turnover to reduce fine lines and wrinkles

  • Soothing 4 ingredients

    Calms redness, irritation, and inflammation for sensitive skin

  • Evens Skin Tone 3 ingredients

    Brightens and balances complexion for a more uniform appearance

  • Anti-Acne 2 ingredients

    Targets breakouts by reducing bacteria and unclogging pores

  • Blackhead Reducing 2 ingredients

    Helps unclog pores and reduce blackheads for clearer skin

  • Oil Control 1 ingredient

    Regulates sebum production to reduce shine and greasiness

  • Pore Minimizer 1 ingredient

    Tightens and refines the look of enlarged pores

  • Smooths Bumpy Skin 1 ingredient

    Refines texture by gently exfoliating rough, uneven patches

Does not target

Dark Spot Fading

None of the ingredients in this formula are associated with these benefits. This is not unusual, as most products are designed to target a limited number of concerns.

Key ingredients

The actives, UV filters and benefit-carrying ingredients in this formula, in the order they are listed.

Water

1st on the list, which puts it at an estimated 30–80% of the formula.

Aqua (EU),Deionized Water,Distilled Water,Micromatrix Fractile AN,Onsen-Sui (JPN),Purified Water

Hydration
Gluconolactone PHA

2nd on the list, which puts it at an estimated 5–20% of the formula.

D-Glucono-1,5-lactone

Evens Skin Tone Anti-Aging Hydration
Lactic Acid AHA

3rd on the list, which puts it at an estimated 5–20% of the formula.

Propanoic acid, 2-hydroxy-

Anti-Aging Evens Skin Tone Hydration
Methylpropanediol

4th on the list, which puts it at an estimated 2–10% of the formula.

2-Methyl-1,3-propanediol

Hydration
Glycolic Acid AHA

5th on the list, which puts it at an estimated 2–10% of the formula.

Acetic acid, hydroxy-

Anti-Aging Evens Skin Tone Smooths Bumpy Skin
Glycerin

9th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Glycerine ;Glycerol (INN); Glycerol (RIFM); Glycerolum (EP); Glycyl Alcohol; 1,2,3-Propanetriol; 1,2,3-Trihydroxypropane

Hydration Anti-Aging
Acacia Senegal Gum

12th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Acacia Senegal Gum is the dried, gummy exudate of the acacia, Acacia senegal, Leguminosae

Soothing
Glyceryl Caprylate

14th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Octanoic acid, monoester with glycerol

Hydration
Niacinamide Vitamin B3 (niacinamide)

15th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Niacinamide (vitamin B3) is a gentle skincare active that repairs the skin barrier, calms redness, controls oil and evens tone at 2–5%. Official IUPAC name: **3-Pyridinecarboxamide**

Soothing Anti-Aging Pore Minimizer
Salicylic Acid BHA

16th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Salicylic acid

Anti-Acne Anti-Aging Blackhead Reducing
Allantoin

17th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Urea, (2,5-dioxo-4-imidazolidinyl)-

Soothing
Ethylhexylglycerin

19th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

1,2-Propanediol, 3-(2-ethylhexyloxy)

Hydration

Formula analysis

Each axis is scored from the ingredients present and how high up the list they sit.

Hydration High

Ingredients that pull and hold water in the upper layers of skin

Barrier support None

Lipids and repair signals that support skin barrier integrity

Antioxidant support None

Ingredients that mop up free radicals from UV and pollution

Oil control Low

Ingredients that moderate sebum or absorb shine

Brightening High

Ingredients that act on uneven tone and post-inflammatory marks

Soothing Low

Ingredients aimed at visible redness and reactivity

Cell renewal High

Retinoids, acids and enzymes that speed surface turnover

Firmness signalling None

Peptides and growth factors that signal for collagen support

Active and supporting ingredients

"Active" here means an ingredient carrying a recorded active type or a recognised UV filter.

Active ingredients (6)

Supporting ingredients (20)

Solvents, emollients, texture agents and preservatives — the formula that carries the actives.

Water Methylpropanediol Potassium Hydroxide 1,2-hexanediol Diethoxyethyl Succinate Glycerin Xanthan Gum Polyglyceryl-10 Laurate Acacia Senegal Gum Polyglyceryl-10 Myristate Glyceryl Caprylate Allantoin Disodium Edta Ethylhexylglycerin Peat Water Hydroxypropyl Methylcellulose Capryloyl Salicylic Acid Butylene Glycol Potassium Sorbate Charcoal Powder

What is and is not in it

Read from the full ingredient list. A brand's own claim may differ.

Free from

  • Fragrance-free
  • Essential-oil-free
  • No drying alcohol
  • Paraben-free
  • Silicone-free
  • Microplastic-free
  • Sulfate-free
  • Dye-free
  • Oil-free
  • No animal-derived ingredients

What to layer it with

Judged by the same curated rules our routine checker uses. It reads the ingredients, not the label.

Compatible with

  • Azelaic acid
  • Copper peptides
  • Bakuchiol
  • Niacinamide
  • Hyaluronic acid
  • Ceramides
  • Signal peptides
  • Panthenol
  • Sunscreen

Use with caution

  • Retinoids (retinol, retinal)

    Best kept to separate routines — one in the morning, one at night, or on alternate days.

  • Vitamin C (L-ascorbic acid)

    Can be layered, but the combination raises the irritation risk. Go slowly.

  • AHAs (glycolic, lactic)

    Can be layered, but the combination raises the irritation risk. Go slowly.

  • BHA (salicylic acid)

    Can be layered, but the combination raises the irritation risk. Go slowly.

  • PHAs (gluconolactone)

    Can be layered, but the combination raises the irritation risk. Go slowly.

  • Benzoyl peroxide

    Can be layered, but the combination raises the irritation risk. Go slowly.

Where it fits in a routine

Morning Evening
  1. Cleanse
  2. Toning
  3. Treat
  4. Moisturise
  5. Protect

This product is the "Treat" step.

  • Apply to clean, dry skin and give it a minute to absorb before the next layer.
  • Introduce one new treatment at a time so you can identify what is working.

Safety and suitability

Flags to check, not verdicts. None of this is medical advice — if you are pregnant, breastfeeding or treating a skin condition, ask a doctor.

Pregnancy and breastfeeding
Contains Salicylic Acid, usually reviewed with a doctor during pregnancy.
Fungal acne (malassezia)
3 ingredients could feed malassezia: Polyglyceryl-10 Laurate, Polyglyceryl-10 Myristate, Glyceryl Caprylate. That is about the yeast's food supply, not a prediction that you will break out.
Sensitive and reactive skin
No ingredient in this formula carries a common-irritant flag, making it a reasonable option for reactive skin. A patch test is still recommended, as individual skin reactivity varies.

Ingredients by function

Most ingredients do more than one job, so these counts add up to more than the 26 ingredients on the label.

6
Active

Changes how skin behaves rather than how it feels

6
Solvent

Dissolves and carries everything else

6
Texture agent

Sets the thickness, spread and stability of the formula

4
Occlusive

Forms a film that slows water loss

4
pH adjuster

Sets the acidity the formula needs to work

3
Humectant

Draws water into the upper layers of skin

3
Chelator

Binds trace metals that would otherwise spoil the formula

3
Surfactant

Lifts oil and dirt, or holds oil and water together

2
Exfoliant

Loosens or dissolves dead surface cells

2
Preservative

Keeps the product free of microbial growth

1
Soothing

Calms visible redness and irritation

1
Emollient

Softens and smooths by filling gaps between skin cells

Ingredient breakdown

Every ingredient on the label, in order, with what it does and roughly how much of it is likely to be there.

1 Water Solvent
Estimated level
30–80%
Confidence
Moderate — INCI order above the 1% line
Roles
Solvent

1st on the list, which puts it at an estimated 30–80% of the formula.

Aqua (EU),Deionized Water,Distilled Water,Micromatrix Fractile AN,Onsen-Sui (JPN),Purified Water

Hydration
3 scientific references
  • Skin Research and Technology, May 2015, pages 131-136
  • Skin Pharmacology and Applied Skin Physiology, November-December 1999, pages 344-351
  • Journal of Cosmetic Science, September-October 1993, pages 249-262
2 Gluconolactone Active
Estimated level
5–20%
Confidence
Moderate — INCI order above the 1% line
Roles
Active, Chelator

2nd on the list, which puts it at an estimated 5–20% of the formula.

D-Glucono-1,5-lactone

Evens Skin Tone Anti-Aging Hydration
3 Lactic Acid Humectant
Estimated level
5–20%
Confidence
Moderate — INCI order above the 1% line
Roles
Humectant, Active, pH adjuster

3rd on the list, which puts it at an estimated 5–20% of the formula.

Propanoic acid, 2-hydroxy-

Anti-Aging Evens Skin Tone Hydration
9 scientific references
  • International Journal of Cosmetic Science, April 2020, pages 116-126
  • International Journal of Dermatology, March 2019, ePublication
  • Clinical, Cosmetic, and Investigational Dermatology, October 2018, pages 491-497
  • International Journal of Dermatology, September 2018, ePublication
  • Molecules, April 2018, ePublication
  • Journal of the American Dental Association, April 2016, pages 255-263
  • Cutis, January 2016, pages E9-E11
  • Clinical, Cosmetic, and Investigational Dermatology, November 2010, pages 135-142
  • The Journal of Dermatology, January 2006, pages 16-22
4 Methylpropanediol Solvent
Estimated level
2–10%
Confidence
Moderate — INCI order above the 1% line
Roles
Solvent

4th on the list, which puts it at an estimated 2–10% of the formula.

2-Methyl-1,3-propanediol

Hydration
3 scientific references
  • PubChem, Accessed April 2021, ePublication
  • Cosmetic Ingredient Review, June 2018, pages 1-73
  • Contact Dermatitis, September 2017, pages 159-162
5 Glycolic Acid Active
Estimated level
2–10%
Confidence
Moderate — INCI order above the 1% line
Roles
Active, pH adjuster

5th on the list, which puts it at an estimated 2–10% of the formula.

Acetic acid, hydroxy-

Anti-Aging Evens Skin Tone Smooths Bumpy Skin
5 scientific references
  • Molecules, April 2018, 23(4), ePublication
  • DNA Cell Biology, February 2017, pages 177-187
  • Journal of Clinical and Aesthetic Dermatology, October 2015, pages 21-26
  • BioMed Research International, 2015, Volume 2015
  • Dermatology Research and Practice, February 2015, Volume 2015
6 Potassium Hydroxide pH adjuster
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line
Roles
pH adjuster

6th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Potassium hydroxide

7 1,2-hexanediol Solvent
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line
Roles
Solvent

7th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

8 Diethoxyethyl Succinate Solvent
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line
Roles
Solvent

8th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Butanedioic acid, bis(2-ethoxyethyl) ester

9 Glycerin Humectant
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line
Roles
Humectant, Occlusive, Texture agent, Solvent

9th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Glycerine ;Glycerol (INN); Glycerol (RIFM); Glycerolum (EP); Glycyl Alcohol; 1,2,3-Propanetriol; 1,2,3-Trihydroxypropane

Hydration Anti-Aging
6 scientific references
  • Journal of Pharmaceutical Investigation, March 2021, pages 223-231
  • International Journal of Toxicology, November/December 2019, Volume 38, Supplement 3, pages 6S-22S
  • International Journal of Cosmetic Science, August 2016, ePublication
  • British Journal of Dermatology, July 2008, pages 23-34
  • Journal of Cosmetic Dermatology, June 2007, pages 75-82
  • Proceedings of the National Academy of Sciences, June 2003, pages 7, 360-7, 365
10 Xanthan Gum Surfactant
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line
Roles
Surfactant, Texture agent

10th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Xanthan gum

11 Polyglyceryl-10 Laurate
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line

11th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

1,2,3-Propanetriol, homopolymer, dodecanoates (1:1) (10 mol glycerol average molar ratio)

12 Acacia Senegal Gum Occlusive
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line
Roles
Occlusive

12th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Acacia Senegal Gum is the dried, gummy exudate of the acacia, Acacia senegal, Leguminosae

Soothing
13 Polyglyceryl-10 Myristate
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line

13th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

1,2,3-Propanetriol, homopolymer, tetradecanoates (1:1) (10 mol glycerol average molar ratio)

14 Glyceryl Caprylate Emollient
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line
Roles
Emollient, Surfactant

14th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Octanoic acid, monoester with glycerol

Hydration
15 Niacinamide Active
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line
Roles
Active

15th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Niacinamide (vitamin B3) is a gentle skincare active that repairs the skin barrier, calms redness, controls oil and evens tone at 2–5%. Official IUPAC name: **3-Pyridinecarboxamide**

Soothing Anti-Aging Pore Minimizer
15 scientific references
  • International Journal of Dermatology, February 2021, pages 166-173
  • Biomolecules & Therapeutics, July 2019, pages 562-569
  • Experimental Dermatology, February 2019, pages 15-22
  • Dermatologic Therapy, September 2017, ePublication
  • Journal of Investigative Dermatology, May 2017, page S116
  • International Journal of Pharmaceutics, March 2017, pages 158-162
  • Facial Plastic Surgery Clinics of North America, May 2016, pages 145-152
  • Clinical, Cosmetic, and Investigational Dermatology, July 2015, pages 405-412
  • Skin Pharmacology and Physiology, June 2014, pages 311-315
  • International Journal of Pharmacy, January 2013, pages 192-201
  • Dermatoendrocrinology, July 2012, pages 308-319
  • International Journal of Toxicology, September 2005, pages 1-31
  • Dermatologic Surgery, July 2005, pages 860-865
  • International Journal of Cosmetic Science, October 2004, pages 231-238
  • Journal of Cosmetic Dermatology, April 2004, pages 88-93
16 Salicylic Acid Active
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line
Roles
Active, Exfoliant, Preservative

16th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Salicylic acid

Anti-Acne Anti-Aging Blackhead Reducing
10 scientific references
  • Experimental Dermatology, July 2019, pages 786-794
  • European Commission Scientific Committee on Consumer Safety, June 2019, pages 1-70
  • Regulatory Toxicology and Pharmacology, April 2018, pages 245-251
  • Journal of Cosmetic Science, January-February 2017, pages 55-58
  • Clinical, Cosmetic, and Investigational Dermatology, August 2015, pages 455-461
  • Clinical, Cosmetic, and Investigational Dermatology, November 2010, pages 135-142
  • Seminars in Cutaneous Medicine and Surgery, September 2008, pages 170-176
  • Journal of the American Academy of Dermatology, April 2007, pages 651-663
  • International Journal of Cosmetic Science, February 2000, pages 21-52
  • Seminars in Dermatology, December 1990, pages 305-308
17 Allantoin Occlusive
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line
Roles
Occlusive, Soothing

17th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Urea, (2,5-dioxo-4-imidazolidinyl)-

Soothing
8 scientific references
  • Chemistry Series, March 2020, pages 7-21
  • Molecules, June 2019, pages 1-33
  • European Journal of Pharmacology, February 2018, pages 68-78
  • Journal of the American Academy of Dermatology, June 2017, Volume 76, Issue 2, Supplement 1
  • Pharmacognosy Review, Volume 5, July-December 2011
  • International Journal of Toxicology, May 2010, Supplement, pages 84S-97S
  • Journal of Occupational Medicine and Toxicology, October 2008, ePublication
  • https://wwwaccessdatafdagov/scripts/cdrh/cfdocs/cfcfr/CFRSearchcfm?CFRPart=347&showFR=1
18 Disodium Edta Texture agent
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line
Roles
Texture agent, Chelator

18th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Disodium dihydrogen ethylenediaminetetraacetate

19 Ethylhexylglycerin
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line

19th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

1,2-Propanediol, 3-(2-ethylhexyloxy)

Hydration
5 scientific references
  • PLoS One, October 2016, ePublication
  • Contact Dermatitis, May 2016, pages 281-288
  • International Journal of Toxicology, September 2013, pages 5S-21S
  • Personal Care, 2008, pages 1-4
  • Cosmetic Science Technology, 2006, pages 1-11
20 Peat Water
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line

20th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Naturally occurring substances, the water expressed from peat

21 Citric Acid Active
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line
Roles
Active, Chelator, pH adjuster

21st on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

2-Hydroxy-1,2,3-propanetricarboxylic acid

22 Hydroxypropyl Methylcellulose Occlusive
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line
Roles
Occlusive, Surfactant, Texture agent

22nd on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Cellulose, 2-hydroxypropyl methyl ether

23 Capryloyl Salicylic Acid
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line

23rd on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Benzoic acid, 2-octanoyloxy-

Anti-Acne Blackhead Reducing Soothing
24 Butylene Glycol Humectant
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line
Roles
Humectant, Texture agent, Solvent

24th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Butane-1,3-diol (CAS No. 107-88-0/ EC No. 203-529-7) (R)-(-)-butane-1,3-diol” (CAS No. 6290-03-5/ EC No. 228-532-0)

Hydration
5 scientific references
  • CosmeticsInfoorg, Accessed March 2021, ePublication
  • US Food and Drug Administration Code of Federal Regulations</em>, Accessed March 2021, ePublication
  • International Journal of Toxicology, May 2011, pages 5S-16S
  • Skin Research and Technology, November 2007, pages 417-24
  • Journal of the American College of Toxicology, September 1985, pages 223-248
25 Potassium Sorbate Preservative
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line
Roles
Preservative

25th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Potassium (E,E)-hexa-2,4-dienoate

26 Charcoal Powder Exfoliant
Estimated level
under 1%
Confidence
Moderate — listed below the 1% line
Roles
Exfoliant, Texture agent

26th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.

Charcoal Powder is the dried, carbonaceous material obtained from the heating of organic substances

Oil Control

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Frequently asked questions

What ingredients are in Hyper ACID4 30 Serum?

WATER, GLUCONOLACTONE, LACTIC ACID, METHYLPROPANEDIOL, GLYCOLIC ACID, POTASSIUM HYDROXIDE, 1,2-HEXANEDIOL, DIETHOXYETHYL SUCCINATE, GLYCERIN, XANTHAN GUM, POLYGLYCERYL-10 LAURATE, ACACIA SENEGAL GUM, POLYGLYCERYL-10 MYRISTATE, GLYCERYL CAPRYLATE, NIACINAMIDE, SALICYLIC ACID, ALLANTOIN, DISODIUM EDTA, ETHYLHEXYLGLYCERIN, PEAT WATER, CITRIC ACID, HYDROXYPROPYL METHYLCELLULOSE, CAPRYLOYL SALICYLIC ACID, BUTYLENE GLYCOL, POTASSIUM SORBATE, CHARCOAL POWDER.

What are the active ingredients in Hyper ACID4 30 Serum?

GLUCONOLACTONE, LACTIC ACID, GLYCOLIC ACID, NIACINAMIDE, SALICYLIC ACID, CITRIC ACID.

How do I use Hyper ACID4 30 Serum?

After cleansing, apply 2–3 drops onto your skin, avoiding the eye and lip areas. Massage lightly for about 1 minute and rinse thoroughly with lukewarm water. *Recommended to use during your nighttime routine.

What skin types is Hyper ACID4 30 Serum good for?

Judged on how rich the formula reads from its ingredient list, it suits Balanced, Combination (oily), Oily skin best. It is the least natural fit for Dry, Combination (dry) skin.

Is Hyper ACID4 30 Serum good for sensitive skin?

No ingredient in this formula carries a common-irritant flag, making it a reasonable option for reactive skin. A patch test is still recommended, as individual skin reactivity varies.

Is Hyper ACID4 30 Serum fungal acne safe?

3 ingredients could feed malassezia: Polyglyceryl-10 Laurate, Polyglyceryl-10 Myristate, Glyceryl Caprylate. That describes the yeast's food supply, not a prediction that they will cause a breakout.

Can I use Hyper ACID4 30 Serum while pregnant?

It contains Salicylic Acid, which are usually reviewed with a doctor during pregnancy. Ask your doctor or midwife before using it.

Is Hyper ACID4 30 Serum fragrance free?

Yes. Reading the full ingredient list, this formula is fragrance-free.

Does Hyper ACID4 30 Serum contain alcohol?

No. Reading the full ingredient list, this formula is no drying alcohol.

Is Hyper ACID4 30 Serum silicone free?

Yes. Reading the full ingredient list, this formula is silicone-free.

Does Hyper ACID4 30 Serum contain essential oils?

No. Reading the full ingredient list, this formula is essential-oil-free.

Is Hyper ACID4 30 Serum paraben free?

Yes. Reading the full ingredient list, this formula is paraben-free.

What can I layer with Hyper ACID4 30 Serum?

It layers well with Azelaic acid, Copper peptides, Bakuchiol, Niacinamide, Hyaluronic acid, Ceramides. Take more care combining it with Retinoids (retinol, retinal), Vitamin C (L-ascorbic acid), AHAs (glycolic, lactic), BHA (salicylic acid), PHAs (gluconolactone), Benzoyl peroxide — use them in separate routines or on alternate days.

When should I apply Hyper ACID4 30 Serum?

Use it morning and evening, after toner, before moisturiser.

How many ingredients does Hyper ACID4 30 Serum have?

It lists 26 ingredients, of which 6 are recorded as actives.

Who makes Hyper ACID4 30 Serum?

Isntree.

Brand
Isntree

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