ISDIN vs Sesderma — side by side, no bias.
Our pick
Isdinceutics Retinal Intense
9/10 · ISDIN
| Isdinceutics Retinal Intense | Azelac Ru Liposomal Serum | |
|---|---|---|
| Brand | ISDIN | Sesderma |
| Category | serum | serum |
| Editor Rating | 9/10 ★ | 8.6/10 |
| Category | serum | serum |
| Texture | Concentrated serum | Watery liposomal serum |
| Finish | Smooth, absorbed | Calmed, brightened, smoothed |
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| Verdict | ISDIN's retinaldehyde powerhouse — a step above retinol in the vitamin A hierarchy. Retinal (retinaldehyde) converts to retinoic acid in one step instead of two, meaning faster results with less irritation than prescription tretinoin. ISDIN pairs it with HPR (hydroxypinacolone retinoate) for a dual-retinoid approach, plus bakuchiol as a botanical synergist and hyaluronic acid for hydration. The Spanish derm brand's most serious anti-aging product. | Sesderma's anti-pigmentation hero — and Spanish dermatologists' favorite alternative to hydroquinone for melasma, post-acne marks, and rosacea-related hyperpigmentation. The active stack pairs azelaic acid (the gentle-but-effective tyrosinase inhibitor and anti-inflammatory) with diacetyl boldine ('RU', a Boldea boldus-derived brightener) and niacinamide for sebum regulation and tone-evening, plus a low dose of glycolic acid for gentle resurfacing. All carried in liposomal phosphatidylcholine for deeper delivery without irritation — meaningful for the rosacea and sensitive-skin users that traditional pigmentation actives often can't tolerate. At $60 for 30ml, premium pricing — but the multi-active stack and the rosacea-friendly profile make it competitive with much more expensive prescription alternatives. |
