Granactive Retinoid

INCI: Hydroxypinacolone Retinoate
Also known as: HPR, Hydroxypinacolone Retinoate, Retinyl Retinoate Ester
RetinoidsretinoidsyntheticEmerging evidenceNot for pregnancy
83
Skinlumis Rating
Comedogenic
1/5
Irritancy
1/5
Best applied
Both
Effective range
0.2%–2%
How It Works

An ester of retinoic acid that binds RAR receptors directly without conversion, delivering retinoid efficacy with markedly reduced irritation. Commercially sold as Granactive Retinoid by Grant Industries.

The hydroxypinacolone ester delivers all-trans retinoic acid directly to RAR sites, bypassing the retinol→retinal→retinoic acid cascade. Lower receptor turnover translates to less inflammatory signalling.

pH Range
5.0–7.0
Benefits
  • Retinoid efficacy without retinisation
  • Photostable
  • Suitable for sensitive skin
  • Compatible with AM use
  • No purge period typically
Proven For

What the evidence supports.

Fine linesPhotoagingMild acne
Best For
  • Sensitive
  • Normal
  • Reactive
  • Mature
Avoid If
  • Pregnant
  • Breastfeeding (precautionary)
Layering Order
6/10

Later treatment or moisturiser step.

Max Safe Concentration
2%

Concentration range in well-formulated products: 0.2%–2%

Seasonal Use

Year-round including summer; photostable.

Nutrition Connection

No dietary equivalent.

Skin Signals When You Need It

No specific deficiency signals tracked for this ingredient.

For Estheticians & Professionals

Excellent retinoid for first-timers and clients who failed retinol due to irritation. Pairs with vitamin C without conflict.

Notable Research
  • Veraldi et al. 2013, HPR 0.2% improved acne with minimal irritation
  • Industry data, equivalent collagen gene expression to retinol at lower irritation
Clinical Evidence

The research behind Granactive Retinoid.

4 peer-reviewed studies

Every claim on this page traces to published research. Findings below are drawn from randomized trials and systematic reviews, each links to the study on PubMed.

Systematic Review
Oral collagen peptides at 2.5-10g daily significantly improved skin elasticity and reduced wrinkle depth after 8-12 weeks across 11 RCTs.
Choi FD, Sung CT, Juhasz MLW, Mesinkovska NA
Journal of Drugs in Dermatology, 2019
View Study →
Systematic Review
Estrogen deficiency following menopause causes 30% reduction in skin collagen within the first 5 years.
Wilkinson HN, Hardman MJ
Maturitas, 2017
View Study →
Systematic Review
Chronic psychological stress elevates cortisol, accelerating skin aging through collagen degradation and barrier disruption.
Chen Y, Lyga J
Inflammation and Allergy Drug Targets, 2014
View Study →
Randomized Controlled Trial
Daily sunscreen use reduced photoaging markers by 24% over 4.5 years compared to discretionary use.
Hughes MCB, Williams GM, Baker P, Green AC
Annals of Internal Medicine, 2013
View Study →
Conflicts With

No flagged conflicts. Still, patch-test new actives.

Your Skin Compatibility

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