ISDIN vs Singuladerm — side by side, no bias.
Our pick
Isdinceutics Retinal Intense
9/10 · ISDIN
| Isdinceutics Retinal Intense | Xpert Youth | |
|---|---|---|
| Brand | ISDIN | Singuladerm |
| Category | serum | serum |
| Editor Rating | 9/10 ★ | 8.2/10 |
| Category | serum | serum |
| Texture | Concentrated serum | Concentrated anti-aging serum |
| Finish | Smooth, absorbed | Smoothed |
| Skin Types |
None — all ingredients are shared
| Targets |
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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. | Singuladerm's hero global anti-aging serum from the Xpert Youth line — Argireline + Matrixyl Synthe'6 + niacinamide + multi-weight HA in a concentrated treatment serum. The brand's anchor anti-aging product. |
