CLINICAL 1% Retinol Treatment
Reviewed by SerumTruth Editorial · Price and formula checked July 2026
A strong-evidence retinoid at a disclosed 1%, the assertive end of the range, in packaging that actually protects it. You pay a mid-prestige price for the transparency and the polish, and 1% is not a beginner strength, so ease in.
- Retinol dosed at a clinical, high-end level
- Air- or light-sensitive actives in protective, opaque packaging
- Evidence26 / 30
Strength of the research behind the key actives
- Retinol: strong evidence
- Tetrahexyldecyl Ascorbate: moderate evidence
The average of the key actives’ evidence grades.
- Potency23 / 25
Dosed at studied levels, not fairy-dusted
- Retinol (1%): dosed at a clinical, high-end level for its category
- Tetrahexyldecyl Ascorbate: present, but below a studied dose
How strongly the actives are dosed, led by the strongest, not how many there are.
- Delivery & stability16 / 20
Delivery tech + packaging that protects fragile actives
- Delivery: standard
- Packaging: airless, opaque
- Air- or light-sensitive actives (Retinol, Tetrahexyldecyl Ascorbate), so packaging is scored.
Delivery tech plus packaging, and packaging only counts when actives are fragile.
- Formulation5 / 10
Disclosure, active breadth, and ingredient generation
- 1 of 2 actives disclose a concentration
- 2 key actives (breadth credit caps at 3)
- Current-generation or synergistic: Tetrahexyldecyl Ascorbate
Disclosure, active breadth, and current-generation or synergistic actives.
- Value12 / 15
What a month of use costs vs. the category
- About $17 per month to use
- $58 for 30 ml, used about once a day (about 0.3 ml each time), so a bottle lasts about 3.3 months
- Frequency is set by Retinol, which is used no more than 7x a week, so a bottle stretches further
What a month of use costs: full marks at $6 a month or less, the floor at $60 a month or more.
Tap any row to see how its score was built.
Ranks #11 of 25 retinoids serums we have scored.
Affiliate links. We may earn a commission at no cost to you. It never changes our score.
What’s inside
| Active | Disclosed | Dose |
|---|---|---|
| Retinol | 1% | Clinical |
| Tetrahexyldecyl Ascorbate | n/a | Light |
A disclosed 1% retinol, the top of the over-the-counter range, supported by tetrahexyldecyl ascorbate (a stable vitamin C ester), ceramide and peptides in a sheer, serum-light base. The opaque pump protects a molecule that hates air and light. It is sold as a treatment rather than a serum, but the texture is fluid and it layers like one.
How it’s delivered
Air- and light-sensitive actives (vitamin C, copper peptides) lose potency fast in the wrong packaging, so delivery and the bottle are scored, not just what’s on the label.
The actives, explained
What the research says
A year of use was linked to fewer visible crow’s feet lines and a more even-looking skin tone versus vehicle in this trial.
One-year topical stabilized retinol treatment improves photodamaged skin in a double-blind, vehicle-controlled trial. Journal of Drugs in Dermatology, 2015. PubMed ↗
A serum with this vitamin C ester was linked to a visibly more even tone and less visible sun damage in photographic assessment.
Hydroquinone-Free, Tetrahexyldecyl Ascorbate Antioxidant Serum for Hyperpigmented and Photodamaged Skin to Achieve Skin Health. Journal of Cosmetic Dermatology, 2026. PubMed ↗
A study of the active, not this exact product. What matters for the score is whether this serum uses it at a comparable dose.
Higher-scoring alternatives
Same category, better SerumProof score. Worth a look before you buy.
Revision history
- July 11, 2026Price and formula rechecked
- July 10, 2026Review published
Spot an error or a reformulation? Tell us and we will fix it.
Cosmetic information for general education, not medical advice. The SerumProof score reflects our reading of publicly available research and formulation disclosures. See how scoring works.