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Hydroxypinacolone Retinoate
Hydroxypinacolone RetinoateActive
Retinoid ester that binds retinoic-acid receptors directly. Better tolerated than retinol; less evidence than tretinoin.
What it does
Hydroxypinacolone retinoate (HPR) is a retinoic acid ester. Unlike retinol, which the skin converts in two enzymatic steps, HPR binds retinoid receptors directly. The result is retinoid-like activity with a gentler tolerance profile. Marketed as 'Granactive Retinoid' in The Ordinary's lineup. The evidence base is thinner than for tretinoin or retinol, but tolerance reports are consistently better. Pregnancy contraindication treats HPR like other retinoids out of caution despite the limited absorption data.
The evidence, graded
strongNo topical retinoid is recommended in pregnancy. The class covers tretinoin, adapalene, tazarotene, trifarotene, retinol, retinaldehyde, retinyl palmitate and hydroxypinacolone retinoate. Direct human data exist mainly for tretinoin and adapalene. The caution extends to the rest as a class-effect. Data on accidental exposure reassure, but are not strong enough to recommend any retinoid here. Oral isotretinoin is a separate case, with an absolute contraindication.Kaplan 2015 · British Journal of Dermatology ↗ expert consensusFor cosmetic anti-aging purposes, retinoids are not recommended under 18. Teen skin is already producing high collagen and cell turnover, and retinoid use in young people is reserved for treating conditions like acne — not for prevention of aging.Motamedi 2021 · Journal of Cutaneous Medicine and Surgery ↗ Graded per the methodology: strong · moderate · emerging · expert consensus. A weak source on a strong claim gets the weaker label.
Also known as
hpr, granactive retinoid
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