Retinal
레티날
INCI: Retinal
Retinal is a retinoid ingredient recorded from reviewed product labels. Its presence does not establish concentration, delivery, comparative potency, tolerance, pregnancy suitability, or an individual result; use the current label and qualified clinical guidance for personal decisions.
How to read this ingredient
Read Retinal as part of a finished formula
Active is an editorial discovery category, not a regulatory classification or guarantee of efficacy. Read the exact INCI name, formula position, declared amount when available, and finished-product evidence.
- Products shown
- 1
- Formula companions
- 8
- Reviewed interactions
- 1
Published reviewed formulas surfaced on this page
Co-occurrence, not proof of synergy or safety
Only public, source-reviewed guidance appears
Reviewed ingredient relationships
Labels summarize the scope of the reviewed evidence. Formula-supported does not mean every separately formulated product pair is synergistic, compatible, or suitable for every person.
A multicentre double-blind randomized vehicle-controlled trial found a finished 0.1% retinaldehyde and 6% glycolic-acid cream effective and generally well tolerated for mild-to-moderate acne. This contradicts a blanket claim that the pair is inherently unsafe, while still not establishing the tolerability of separately layered products at unknown strengths.
The evidence supports extra attention to formula, strength, timing, frequency, or tolerance rather than a universal ban.
Products containing Retinal
Only active products with a published reviewed formula are listed. Presence does not establish concentration or product performance.
Common formula companions
Ingredients frequently mapped in the same products as Retinal. This is a formula pattern, not a compatibility or safety claim.
Sources and record context
These links support records surfaced on this page. They do not verify every regional formula, concentration, product claim, or individual result.