Retinal Advanced is ISDIN’s dual-phase night serum built around retinaldehyde. The package dispenses a retinal phase and a soothing phase to be mixed at application. ISDIN also lists melatonin and bakuchiol among the featured ingredients.
BES3 verdict
This product is for a user intentionally adding a retinoid for visible fine lines, texture or uneven tone and willing to increase frequency gradually. It is not a low-attention moisturizer. Sensitive or retinoid-naive skin should treat the soothing phase as support, not a guarantee against irritation.
Why retinal matters
Retinaldehyde converts to retinoic acid in one skin-conversion step, while retinol requires two. That chemistry makes retinal an interesting cosmetic retinoid, but concentration, stability and delivery still determine the final result.
ISDIN cites company studies in 34 participants for several visible outcomes. The official page identifies these as data on file. BES3 treats them as brand evidence rather than independent replication, and the small study size limits broad conclusions.
A cautious introduction
Use at night on dry skin. Mix the two dispensed phases as directed and apply a small amount across the face, avoiding eyelid margins and irritated areas.
- Weeks 1-2: one or two non-consecutive nights.
- Weeks 3-4: every third night if comfortable.
- After week 4: hold or increase slowly; nightly use is not mandatory.
Follow with moisturizer. Pause exfoliating acids while learning tolerance. Persistent burning, swelling or cracking means stop and allow skin to recover.
Who should take extra care
People using prescription retinoids, managing eczema or receiving procedures should ask a qualified clinician before adding another active. Cosmetic retinoids are generally avoided during pregnancy out of caution.
Use broad-spectrum sunscreen each morning. A retinoid routine aimed at photoaging makes little sense without dependable protection from ongoing exposure.
PRACTICAL NEXT STEP
Separate brand information from the decision
Brand material can explain a product range, but it should not make the decision by itself. Bring the claimed benefit back to the format, directions, price, your routine and the evidence shown alongside it.
Use this article to guide: retinoid serum, fine lines, uneven tone.
- Check the exact product and directions rather than relying on a range-level claim.
- Decide what role the product would replace or add to your existing routine.
- Compare official information with independent sources and your own tolerance.
Before making a purchase or adding another step, decide what this change would replace. A smaller, clearer test is easier to evaluate than several new products used at once.
Revisit the decision after a few ordinary uses. Keep what is genuinely useful, simplify what is not, and let comfort and practicality carry more weight than a trend or a single swatch.
Keep the limit clear: A brand guide is educational and does not verify individual results, pricing or suitability for a medical concern.
EXPLORE THE CONTEXT
Continue through the beauty archive.
Take the next useful route rather than treating one article as the end of the question.
OFFICIAL BRAND WEBSITE
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Sources
Last reviewed Apr 3, 2026. This article is educational and does not replace medical advice.