CLINICAL 1% Retinol Treatment
Reviewed by SerumTruth Editorial · Updated 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.
- Evidence26 / 30
Strength of the research behind the key actives
- Retinol: strong evidence
- Tetrahexyldecyl Ascorbate: moderate evidence
- Score is 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
- Potency tracks 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.
- 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
- 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
- Band: $6/month or less earns full marks, $60/month or more hits the floor.
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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
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.