Comfort Zone vs Miamo — side by side, no bias.
| Skin Regimen 1.5 Retinol Booster | Vitamin C 30% Serum | |
|---|---|---|
| Brand | Comfort Zone | Miamo |
| Category | serum | serum |
| Editor Rating | 8.8/10 | 8.8/10 |
| Category | serum | serum |
| Texture | Concentrated oil-serum drops | Lightweight water serum |
| Finish | Smooth, refined, renewed | Dewy |
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| Verdict | Comfort Zone's most potent active — a 1.5% pure retinol booster in a squalane base that professionals use as the heavy-hitter in spa anti-aging protocols. The concentration is serious: 1.5% retinol is higher than most consumer retinol products (The Ordinary's strongest is 1%) and sits in the territory typically reserved for dermatologist-dispensed products. The squalane carrier serves a dual purpose — stabilizing the retinol against oxidation while providing emollient hydration that offsets retinol's drying effect. Rosemary extract and vitamin E add antioxidant protection. The 'booster' format means 2–3 drops mixed into your existing moisturizer or serum, which gives flexible dosing: start with one drop every other night, build to three drops nightly. At ~€88 (~$98) for 25ml, it's premium — but the concentration means a bottle lasts 3–4 months of nightly use. This is the product that spa therapists reach for when clients are ready to graduate from retinol alternatives to the real thing. | Miamo's hero product and the reason the brand matters. 30% 3-O-Ethyl Ascorbic Acid — a stable, bioavailable vitamin C derivative that doesn't oxidise in the bottle like pure L-Ascorbic Acid — plus ferulic acid for antioxidant synergy and sodium hyaluronate for hydration. Founded by two pharmacists who trained in the US and brought cosmeceutical rigour back to Naples. The concentration is genuinely high, the stability is genuinely better than most LAA serums, and the €94 price tag is fair for what's in the bottle. |
