ISDIN vs MartiDerm — side by side, no bias.
Our pick
Eryfotona AK Oil-Free SPF 100+
8.8/10 · ISDIN
| Eryfotona AK Oil-Free SPF 100+ | Epigence Optima SPF50+ | |
|---|---|---|
| Brand | ISDIN | MartiDerm |
| Category | sunscreen | sunscreen |
| Editor Rating | 8.8/10 ★ | 8.2/10 |
| Category | sunscreen | sunscreen |
| Texture | Oil-free fluid | Lightweight anti-aging fluid |
| Finish | Dry-touch matte | Protected, brightened, smooth |
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| Verdict | ISDIN's Eryfotona AK Oil-Free is the actinic-keratosis-strength sister of the cult Eryfotona Actinica — same DNA Repairsomes (photolyase enzymes from plankton extract) for active DNA-damage repair, but in an oil-free SPF 100+ format for oily and acne-prone skin. Mineral + chemical hybrid filters, plus Tinosorb S and ethylhexyl triazone for full broad-spectrum. Spanish dermatology gold standard for skin with prior actinic damage. | MartiDerm's premium sunscreen — an SPF50+ fluid that doubles as an anti-aging treatment. The formulation layers modern UV filters with the brand's signature ingredient: proteoglycans (large glycoprotein molecules that bind water in the extracellular matrix, providing structural hydration and anti-aging support). Ascorbyl glucoside (stabilized vitamin C), niacinamide, and vitamin E provide antioxidant defense against the UV damage that slips past the filters. MartiDerm was the first Spanish brand to use proteoglycans in skincare (the Proteos ampoule line launched their global reputation), and this sunscreen extends that expertise into daily sun protection. At ~$42 for 50ml, mid-tier pricing that's competitive with La Roche-Posay and Vichy anti-aging sunscreens. |
