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
TIRTIR
Niacinamide 20% Serum
face serum
TIRTIR
face serum
Added Last edited
Fit by skin type
General, ingredient-based — not your personalized match.
See how this fits your skin
Take the skin test and I'll show you how suitable this product is for you.
Take the skin testAchieve smooth, even-toned skin with the TIRTIR Niacinamide 20% Serum, formulated to fade blemishes and hyperpigmentation while minimizing enlarged pores. Enriched with 20% niacinamide, alpha-arbutin, and glutathione, this serum offers powerful brightening and anti-aging benefits, promoting a radiant and youthful complexion. Additionally, retinol and zinc PCA provide effective anti-aging care and soothe skin irritation. With multiple types of hyaluronic acid, the serum deeply hydrates and locks in moisture, strengthening the skin barrier and enhancing elasticity. Dermatologically tested, it ensures visible improvements in skin tone and texture, making it ideal for those seeking a brighter, more even complexion.
Niacinamide 20% Serum is a lightweight serum from TIRTIR. The formula is built mainly around hydration. The ingredient list runs to 37 ingredients, each broken down in full below.
By its ingredient list the formula reads as light: water and humectants lead, with emollients kept lower in the order. Hydration is handled by Glycerin, Butylene Glycol and Propanediol, humectants that pull water into the upper layers of skin rather than sealing it there.
Hydration: High. Ingredients that pull and hold water in the upper layers of skin, and here that comes from Glycerin, Butylene Glycol, Propanediol and Ethylhexylglycerin.
Brightening: Moderate. Ingredients that act on uneven tone and post-inflammatory marks, and here that comes from Niacinamide and Alpha-arbutin.
Soothing: Moderate. Ingredients aimed at visible redness and reactivity, and here that comes from Niacinamide, Sodium Hyaluronate, Fructan and Chitosan.
Barrier support: Moderate. Lipids and repair signals that support skin barrier integrity, and here that comes from Niacinamide, Hydrogenated Lecithin and Cholesterol.
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.
The formula contributes little or nothing on antioxidant protection, cell renewal 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.
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.
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.
Drawn purely from the ingredient list
Scored on how rich or light the formula reads from its INCI order.
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.
Based on the curated benefits documented for this product's ingredients.
Attracts and locks in moisture to keep skin plump and dewy
Boosts collagen and cell turnover to reduce fine lines and wrinkles
Calms redness, irritation, and inflammation for sensitive skin
Tightens and refines the look of enlarged pores
Targets breakouts by reducing bacteria and unclogging pores
Fades hyperpigmentation and evens out dark spots over time
Brightens and balances complexion for a more uniform appearance
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.
The actives, UV filters and benefit-carrying ingredients in this formula, in the order they are listed.
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
2nd on the list, which puts it at an estimated 5–20% of the formula.
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**
3rd on the list, which puts it at an estimated 5–20% of the formula.
Glycerine ;Glycerol (INN); Glycerol (RIFM); Glycerolum (EP); Glycyl Alcohol; 1,2,3-Propanetriol; 1,2,3-Trihydroxypropane
4th on the list, which puts it at an estimated 2–10% of the formula.
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)
5th on the list, which puts it at an estimated 2–10% of the formula.
1,3-dihydroxypropane
6th on the list, which puts it at an estimated 2–10% of the formula.
4-Hydroxyphenyl-alpha-D-glucopyranoside
8th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Ethanone, 1-(4-hydroxyphenyl)-,p-Hydroxyacetophenone
12th 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)
13th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Decanoic acid, ester with 1,2,3-propanetriol octanoate; Glycerides, mixed decanoyl and octanoyl
18th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Lecithins, hydrogenated
19th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Retinol; vitamin A
20th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Hyaluronic acid
Each axis is scored from the ingredients present and how high up the list they sit.
Ingredients that pull and hold water in the upper layers of skin
Lipids and repair signals that support skin barrier integrity
Ingredients that mop up free radicals from UV and pollution
Ingredients that moderate sebum or absorb shine
Ingredients that act on uneven tone and post-inflammatory marks
Ingredients aimed at visible redness and reactivity
Retinoids, acids and enzymes that speed surface turnover
Peptides and growth factors that signal for collagen support
"Active" here means an ingredient carrying a recorded active type or a recognised UV filter.
Solvents, emollients, texture agents and preservatives — the formula that carries the actives.
Read from the full ingredient list. A brand's own claim may differ.
Macadamia Ternifolia Seed Oil
Judged by the same curated rules our routine checker uses. It reads the ingredients, not the label.
Best kept to separate routines — one in the morning, one at night, or on alternate days.
Best kept to separate routines — one in the morning, one at night, or on alternate days.
Best kept to separate routines — one in the morning, one at night, or on alternate days.
Best kept to separate routines — one in the morning, one at night, or on alternate days.
Can be layered, but the combination raises the irritation risk. Go slowly.
Can be layered, but the combination raises the irritation risk. Go slowly.
This product is the "Treat" step.
Flags to check, not verdicts. None of this is medical advice — if you are pregnant, breastfeeding or treating a skin condition, ask a doctor.
Most ingredients do more than one job, so these counts add up to more than the 37 ingredients on the label.
Sets the thickness, spread and stability of the formula
Draws water into the upper layers of skin
Lifts oil and dirt, or holds oil and water together
Changes how skin behaves rather than how it feels
Dissolves and carries everything else
Neutralises free radicals from UV and pollution
Softens and smooths by filling gaps between skin cells
Forms a film that slows water loss
Binds trace metals that would otherwise spoil the formula
Sets the acidity the formula needs to work
Botanical material, usually for antioxidants or scent
Absorbs or scatters ultraviolet light
Every ingredient on the label, in order, with what it does and roughly how much of it is likely to be there.
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
2nd on the list, which puts it at an estimated 5–20% of the formula.
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**
3rd on the list, which puts it at an estimated 5–20% of the formula.
Glycerine ;Glycerol (INN); Glycerol (RIFM); Glycerolum (EP); Glycyl Alcohol; 1,2,3-Propanetriol; 1,2,3-Trihydroxypropane
4th on the list, which puts it at an estimated 2–10% of the formula.
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)
5th on the list, which puts it at an estimated 2–10% of the formula.
1,3-dihydroxypropane
6th on the list, which puts it at an estimated 2–10% of the formula.
4-Hydroxyphenyl-alpha-D-glucopyranoside
7th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
8th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Ethanone, 1-(4-hydroxyphenyl)-,p-Hydroxyacetophenone
9th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
C10-30 alkyl propenoate, polymer with propenoic acid, butenoic acidand/or alkyl propenoates, product with propenyl sucrose ether or propenyl 2,2-dihydroxymethyl-1,3-propanediol
10th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
1,3-Propanediol, 2-amino-2-(hydroxymethyl)-
11th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Poly(oxy-1,2-ethanediyl), .alpha.,.alpha.',.alpha.''-1,2,3-propanetriyltris-.omega.-hydroxy-, esters with 5-oxo-L-proline and isooctadecanoic acid (25 mol EO average molar ratio)
12th 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)
13th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Decanoic acid, ester with 1,2,3-propanetriol octanoate; Glycerides, mixed decanoyl and octanoyl
14th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Macadamia Ternifolia Seed Oil is the fixed oil obtained from the nuts of the Bushnut, Macadamia ternifolia, Proteaceae. It consists primarily of the glycerides of the fatty acids
15th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Zea Mays Kernel Extract is an extract of the kernels of the Corn, Zea mays L., Poaceae
16th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Disodium dihydrogen ethylenediaminetetraacetate
17th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer is a copolymer of sodium hydroxyethyl acrylate and acryloyldimethyl taurate monomers
18th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Lecithins, hydrogenated
19th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Retinol; vitamin A
20th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Hyaluronic acid
21st on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Hydrolyzed Hyaluronic Acid is the hydrolysate of Hyaluronic Acid derived by acid, enzyme or other method of hydrolysis
22nd on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Hyaluronic acid, sodium, salt
23rd on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Brassica Campestris Sterols is a mixture of sterols obtained from the Cabbage, Brassica campestris L., Brassicaceae
24th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Cholest-5-en-3-ol (beta)-
25th 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)
26th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
N-Dodecanoylglutamic acid, esters with (3-.beta.)-sigmast-5-en-3-ol, docosanol, and 2-octyldodecanol
27th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Aluminum magnesium hydroxide and stearic acid
28th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Benzenepropanoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-, 2,2-bis[[3-[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]-1-oxopropoxy] methyl]-1,3-propanediyl ester
29th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Sorbitan, monooctadecanoate, poly(oxy-1,2-ethanediyl) derivs.
30th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Sorbitan, isooctadecanoate
31st on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Fructan is a homopolymer of fructose
32nd on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
1-hexadecanol, phosphate, potassium salt
33rd on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Glucose
34th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Chitin, deacylated
35th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
4-Piperidinol, 1-Hydroxy-2,2,6,6-Tetramethyl -, 2-Hydroxy-1,2,3-Propanetricarboxylate (3:1) (salt)
36th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Glycine, N-(N-L-.gamma.-glutamyl-L-cysteinyl)-
37th on the list, below the 1% line — present at under 1%, which for most ingredients is the level they work at.
Proline, 5-oxo-, zinc salt
Products in the same category that share this formula's distinguishing ingredients.
Dr.Althea
Shares 12 key ingredients with Niacinamide 20% Serum: Water, Propanediol, Butylene Glycol, Glycerin, Niacinamide
Anua
Shares 12 key ingredients with Niacinamide 20% Serum: Water, Glycerin, Niacinamide, Sodium Hyaluronate, Ethylhexylglycerin
Arencia
Shares 12 key ingredients with Niacinamide 20% Serum: Water, Glycerin, Butylene Glycol, Propanediol, Niacinamide
Missha
Shares 12 key ingredients with Niacinamide 20% Serum: Water, Glycerin, Propanediol, Niacinamide, Butylene Glycol
Arencia
Shares 11 key ingredients with Niacinamide 20% Serum: Water, Propanediol, Glycerin, Sodium Hyaluronate, Niacinamide
Arencia
Shares 11 key ingredients with Niacinamide 20% Serum: Water, Butylene Glycol, Glycerin, Propanediol, Niacinamide
WATER, NIACINAMIDE, GLYCERIN, BUTYLENE GLYCOL, PROPANEDIOL, ALPHA-ARBUTIN, 1,2-HEXANEDIOL, HYDROXYACETOPHENONE, ACRYLATES/C10-30 ALKYL ACRYLATE CROSSPOLYMER, TROMETHAMINE, GLYCERETH-25 PCA ISOSTEARATE, ETHYLHEXYLGLYCERIN, CAPRYLIC/CAPRIC TRIGLYCERIDE, MACADAMIA TERNIFOLIA SEED OIL, ZEA MAYS KERNEL EXTRACT, DISODIUM EDTA, HYDROXYETHYL ACRYLATE/SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER, HYDROGENATED LECITHIN, RETINOL, HYALURONIC ACID, HYDROLYZED HYALURONIC ACID, SODIUM HYALURONATE, BRASSICA CAMPESTRIS STEROLS, CHOLESTEROL, POLYGLYCERYL-10 LAURATE, PHYTOSTERYL/BEHENYL/OCTYLDODECYL LAUROYL GLUTAMATE, ALUMINUM/MAGNESIUM HYDROXIDE STEARATE, PENTAERYTHRITYL TETRA-DI-T-BUTYL HYDROXYHYDROCINNAMATE, POLYSORBATE 60, SORBITAN ISOSTEARATE, FRUCTAN, POTASSIUM CETYL PHOSPHATE, GLUCOSE, CHITOSAN, TRIS(TETRAMETHYLHYDROXYPIPERIDINOL) CITRATE, GLUTATHIONE, ZINC PCA.
NIACINAMIDE, RETINOL, HYALURONIC ACID, HYDROLYZED HYALURONIC ACID, SODIUM HYALURONATE.
During the essence step, take an appropriate amount and gently apply it along the skin texture. Lightly pat into the skin to aid in absorption.
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.
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.
6 ingredients could feed malassezia: Glycereth-25 PCA Isostearate, Macadamia Ternifolia Seed Oil, Polyglyceryl-10 Laurate, Aluminum/magnesium Hydroxide Stearate, Polysorbate 60, Sorbitan Isostearate. That describes the yeast's food supply, not a prediction that they will cause a breakout.
It contains Retinol, Alpha-arbutin, which are usually reviewed with a doctor during pregnancy. Ask your doctor or midwife before using it.
Yes. Reading the full ingredient list, this formula is fragrance-free.
No. Reading the full ingredient list, this formula is no drying alcohol.
Yes. Reading the full ingredient list, this formula is silicone-free.
No. Reading the full ingredient list, this formula is essential-oil-free.
Yes. Reading the full ingredient list, this formula is paraben-free.
It layers well with Retinoids (retinol, retinal), Copper peptides, Bakuchiol, Niacinamide, Hyaluronic acid, Ceramides. Take more care combining it with AHAs (glycolic, lactic), BHA (salicylic acid), PHAs (gluconolactone), Benzoyl peroxide, Vitamin C (L-ascorbic acid), Azelaic acid — use them in separate routines or on alternate days.
Use it morning and evening, after toner, before moisturiser.
It lists 37 ingredients, of which 5 are recorded as actives.
TIRTIR.
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