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The Inkey List · Serums

Tranexamic Acid Night Treatment

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Tranexamic Acid Night Treatment
Image from the brand's product page

Product

Brand:
The Inkey List
Product type:
Serums
Source page:
https://www.theinkeylist.com/products/tranexamic-acid-night-treatment
Last checked:
2026-10-30
Formula version:
Pack label · 2026-10-30
Fragrance & alcohol:
Fragrance-free · Alcohol-free
Ingredient list coverage 100% Well covered

23 ingredients on this list · WATER at number 1 · BUTYLENE GLYCOL at number 2 · GLYCERIN at number 3

Product description

A night serum listing 2% tranexamic acid with a vitamin C derivative, marketed for dark spots.

Full ingredient list

Kept exactly as the source printed it, including spelling in the original.

  1. 1 WATER
  2. 2 BUTYLENE GLYCOL
  3. 3 GLYCERIN
  4. 4 ASCORBYL GLUCOSIDE
  5. 5 TRANEXAMIC ACID
  6. 6 EUTERPE OLERACEA (ACAI) FRUIT EXTRACT
  7. 7 1-METHYLHYDANTOIN-2-IMIDE
  8. 8 SODIUM ACRYLATES COPOLYMER
  9. 9 PHENOXYETHANOL
  10. 10 CARBOMER
  11. 11 SODIUM HYDROXIDE
  12. 12 CETEARYL OLIVATE
  13. 13 BENZYL ALCOHOL
  14. 14 SORBITAN OLIVATE
  15. 15 HYDROXYETHYL ACRYLATE/SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER
  16. 16 LECITHIN
  17. 17 SQUALANE
  18. 18 ETHYLHEXYLGLYCERIN
  19. 19 SODIUM GLUCONATE
  20. 20 POLYSORBATE 60
  21. 21 DEHYDROACETIC ACID
  22. 22 LACTOBACILLUS FERMENT
  23. 23 SORBITAN ISOSTEARATE
Original label text 
Aqua (Water/Eau), Butylene Glycol, Glycerin, Ascorbyl Glucoside, Tranexamic Acid, Euterpe Oleracea Fruit Extract, 1-Methylhydantoin-2-Imide, Sodium Acrylates Copolymer, Phenoxyethanol, Carbomer, Sodium Hydroxide, Cetearyl Olivate, Benzyl Alcohol, Sorbitan Olivate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Lecithin, Squalane, Ethylhexylglycerin, Sodium Gluconate, Polysorbate 60, Dehydroacetic Acid, Lactobacillus Ferment, Sorbitan Isostearate
Source:Tranexamic Acid Night Treatment — brand product page

Ingredient analysis

Tranexamic acid · Actives · BUTYLENE GLYCOL · Humectants · Cetearyl Olivate · Emollients

Actives

2

Ingredients added for a stated effect on the skin.

Humectants

3

Bind water and draw it into the upper layers of the skin.

Emollients

4

Fill the gaps between corneocytes to soften and smooth the surface.

Occlusives

1

Form a film that slows water loss from the skin surface.

Preservatives

4

Inhibit microbial growth so the product stays safe to use.

Antioxidants

2

Slow oxidation of the formula or of skin surface lipids.

Chelating agents

1

Binds metal ions to keep the formula stable.

pH adjusters

1

Bring the formula to, and hold it at, its target pH.

Texture agents

3

Set the viscosity and feel of a formula.

Solvents

2

Dissolve or carry other ingredients.

Emulsifiers

3

Keep oil and water mixed in a stable formula.

Other

1

Use on the ingredient list: see the product ingredient list.

Evidence

  • Skin effect Human trial Certainty: Moderate Primary source

    In a randomized trial of 50 female melasma patients, a topical 5% tranexamic acid cream applied twice daily for 12 weeks reduced the Melasma Area and Severity Index by 50.88% (p=0.001).

    Who it applies to: Female melasma patients applying a 5% topical tranexamic acid cream twice daily for 12 weeks (compared with an oral tranexamic acid arm).

    Study limits: Small sample (50) and a single-centre study; the trial compared topical against oral tranexamic acid.

    Source:Randomized Clinical Trial on the Efficacy of Oral Tranexamic Acid Versus Topical Tranexamic Acid in Treatment of Melasma
  • Skin effect Human trial Certainty: Moderate Primary source

    In a randomized study of 50 women with melasma, topical 3% tranexamic acid serum plus moisturizer reduced periorbital wrinkle grading significantly more than moisturizer alone at weeks 4, 8 and 12, with the benefit persisting after treatment stopped.

    Who it applies to: Women with melasma applying 3% topical tranexamic acid serum plus moisturizer (vs moisturizer alone) for 8 weeks, follow-up to week 12.

    Study limits: The population is melasma patients.

    Source:Tranexamic acid protects human dermal fibroblasts from D-galactose-induced senescence via the GPR30/MAPK pathway
  • Skin effect Human trial Certainty: Low Primary source

    In 30 women with melasma or post-inflammatory hyperpigmentation, a serum combining lotus sprout extract, tranexamic acid and niacinamide reduced skin tone unevenness by 38% and 33% respectively over 16 weeks (P < 0.008).

    Who it applies to: Women with melasma or PIH, 70% with Fitzpatrick skin types IV-VI, applying the serum twice daily for 16 weeks.

    Study limits: 30 participants; "skin tone unevenness" is a sponsor-defined endpoint.

    Source:Efficacy and Tolerability of a Topical Pigment-Correcting Serum in Melasma and Postinflammatory Hyperpigmentation
  • Skin effect Human trial Certainty: Moderate Primary source

    In a randomized, double-blind, four-arm crossover study of 51 healthy volunteers with dry skin, an emollient containing glycerol and petrolatum raised corneometry-measured skin moisture significantly above its vehicle (P < 0.0001) over 12 hours. The authors attributed the hydration gain to the glycerol component and the lower water loss to the petrolatum component.

    Who it applies to: Corneometry (skin moisture) and transepidermal water loss over 12 hours after one application.

    Study limits: Measured on the forearms. The significant hydration result comes from the full emollient containing both glycerol and petrolatum.

    Source:Combined effects of glycerol and petrolatum in an emollient cream: A randomized, double-blind, crossover study in healthy volunteers with dry skin
  • Skin effect Review article Certainty: Moderate Primary source

    Topical glycerol improves stratum corneum hydration, barrier function and skin mechanical properties. The review also reports reduced irritation response and faster wound healing, and traces the effect to aquaporin-3 transport and to glycerol's own presence in the skin.

    Who it applies to: Leave-on products. The review discusses both healthy skin and skin with dry or barrier-impaired conditions such as atopic dermatitis.

    Study limits: A narrative review. It compiles mechanisms and results from other studies.

    Source:Glycerol and the skin: holistic approach to its origin and functions
  • Skin effect Official ingredient listing Certainty: High Public database

    Glycerin is classified as a humectant in cosmetic ingredient databases: its role in a formula is to hold water.

    Who it applies to: Cosmetic formulas generally. · Ingredient database · GLYCERIN

    Study limits: Skin effect of to the stratum corneum comes from a separate review of the literature. · Ingredient database · GLYCERIN

    Source:PubChemCosIng — European Commission cosmetic ingredient database
  • Legal limits Official legal text Certainty: High Primary source

    The EU Scientific Committee on Consumer Safety concluded in 2016 that 2-phenoxyethanol is safe as a preservative at a maximum of 1.0%, which is the limit already set in Annex V/29 of the EU Cosmetics Regulation. It estimated a margin of safety of about 50 for children.

    Who it applies to: Phenoxyethanol used as a preservative in cosmetic products, at or below 1.0%.

    Study limits: The dossier behind the conclusion was submitted by Cosmetics Europe, the industry association, and the committee lowered the default toxicokinetic factor from 4.0 to 1.0 on its way to the 1.0% conclusion. The final opinion kept 1.0%.

    Source:Opinion of the Scientific Committee on Consumer Safety (SCCS) - Final version of the opinion on Phenoxyethanol in cosmetic products

Related skin concerns

Skin concerns with evidence for ingredients on this list.

Melasma Wrinkles and fine lines Uneven skin tone Dehydrated skin Dryness Barrier damage Sensitive skin

Formula history

1 version of this formula on record.

Related products

Source:Tranexamic Acid Night Treatment — brand product page