The Ordinary · Serums
Alpha Arbutin 2% + HA
Product
- Brand:
- The Ordinary
- Product type:
- Serums
- Last checked:
- 2026-10-30
- Formula version:
- Pack label · 2026-10-30
- Fragrance & alcohol:
- Fragrance-free · Alcohol-free
15 ingredients on this list · WATER at number 1 · Arbutin at number 2 · PROPANEDIOL at number 3
Product description
An alpha-arbutin serum at a stated 2%, with hyaluronic acid, marketed for uneven skin tone.
Full ingredient list
Kept exactly as the source printed it, including spelling in the original.
- 1 WATER
- 2 ARBUTIN
- 3 PROPANEDIOL
- 4 POLYACRYLATE CROSSPOLYMER-6
- 5 HYDROLYZED SODIUM HYALURONATE
- 6 ERGOTHIONEINE
- 7 POLYSORBATE 20
- 8 CITRIC ACID
- 9 SODIUM CITRATE
- 10 SODIUM HYDROXIDE
- 11 SODIUM METABISULFITE
- 12 TRISODIUM ETHYLENEDIAMINE DISUCCINATE
- 13 ETHOXYDIGLYCOL
- 14 PHENOXYETHANOL
- 15 CHLORPHENESIN
Original label text
Aqua (Water), Alpha-Arbutin, Propanediol, Polyacrylate Crosspolymer-6, Hydrolyzed Sodium Hyaluronate, Ergothioneine, Polysorbate 20, Citric Acid, Sodium Citrate, Sodium Hydroxide, Sodium Metabisulfite, Trisodium Ethylenediamine Disuccinate, Ethoxydiglycol, Phenoxyethanol, Chlorphenesin
Ingredient analysis
Arbutin · Actives · PROPANEDIOL · Humectants · POLYSORBATE 20 · Cleansing agents
Humectants
2Bind water and draw it into the upper layers of the skin.
Preservatives
3Inhibit microbial growth so the product stays safe to use.
Antioxidants
2Slow oxidation of the formula or of skin surface lipids.
Chelating agents
2Binds metal ions to keep the formula stable.
Evidence
- Skin effect Human trial Certainty: Moderate Primary source
In a randomized, placebo-controlled, double-blind trial of 102 women with melasma or solar lentigo, a cream with 2.51% arbutin applied twice daily for 8 weeks lightened discolouration in 75.86% of the melasma group and 56.00% of the solar-lentigo group.
Who it applies to: Women aged 26-55 with melasma or solar lentigo, applying a 2.51% arbutin cream twice daily for 8 weeks.
Study limits: The active was an aqueous extract standardised to 2.51% arbutin.
- Skin effect Human trial Certainty: Moderate Primary source
In a randomized, double-blind, controlled study of 90 volunteers with melasma, the arbutin-cream arm showed a significant fall in melasma severity score from 12.65 to 10.84 over 12 weeks; two participants had mild erythema and itching that resolved after stopping the cream.
Who it applies to: Volunteers with melasma using an arbutin cream twice daily for 12 weeks (one of three arms: herbal mixture, arbutin cream, placebo).
Study limits: Small per-arm sample and a single active agent among three comparison groups; tolerability was good overall with two mild irritation events.
- 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%.
Related skin concerns
Skin concerns with evidence for ingredients on this list.
Formula history
1 version of this formula on record.