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Quem Disse, Berenice?'s vitamin C entry from Grupo Boticário's playful, rule-breaking brand. The formula runs 10% ethyl ascorbic acid — one of the most stable vitamin C derivatives available — doubled down with pure ascorbic acid at the tail of the deck. Acetylated sodium hyaluronate (a 'super HA' that binds skin better than standard HA) and carnosine, a peptide antioxidant rarely seen at this price tier. The gel texture absorbs fast under sunscreen. For a sub-R$150 serum from a brand known for lipstick and fragrance, the INCI deck punches genuinely hard.
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A 24-karat-gold-plated microchannel device that delivers custom serum cocktails — usually micro-doses of Botox, hyaluronic acid, vitamins, and peptides — into the upper dermis.
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A cocktail of vitamins, amino acids, and hyaluronic acid injected into the superficial dermis — French-born, globally adopted, endlessly remixed.
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Skin.Q Serum Concentrado Antioxidante Vitamina C by Quem Disse Berenice is formulated for all, combination, oily, normal skin. Quem Disse, Berenice?'s vitamin C entry from Grupo Boticário's playful, rule-breaking brand. The formula runs 10% ethyl ascorbic acid — one of the most stable vitamin C derivatives available — doubled down with pure ascorbic acid at the tail of the deck. Acetylated sodium hyaluronate (a 'super HA' that binds skin better than standard HA) and carnosine, a peptide antioxidant rarely seen at this price tier. The gel texture absorbs fast under sunscreen. For a sub-R$150 serum from a brand known for lipstick and fragrance, the INCI deck punches genuinely hard.
The key active ingredients in Skin.Q Serum Concentrado Antioxidante Vitamina C are Hyaluronic Acid, Vitamin C, Vitamin E (Tocopherol). It's known for: 10% ethyl ascorbic acid is highly photostable — won't oxidize in a Brazilian bathroom and Layered antioxidant approach: two vitamin C forms + vitamin E + carnosine peptide.
Yes, Skin.Q Serum Concentrado Antioxidante Vitamina C targets dullness, hyperpigmentation, fine lines. 10% ethyl ascorbic acid is highly photostable — won't oxidize in a Brazilian bathroom
Skin.Q Serum Concentrado Antioxidante Vitamina C retails for around $28, which places it in the budget range for serums. Check the "Where to Buy" section above for current retailer prices.
The main drawbacks to be aware of: Contains fragrance and several fragrance allergens (limonene, linalool, hexyl cinnamal); Gel texture can feel briefly tacky before full absorption on humid days; Difficult to source outside Brazil and Portugal.
A suggested daily routine featuring this product, with complementary picks.
Ultime8 Sublime Beauty Cleansing Oil
Shu Uemura · cleanser
Gokujyun Premium Hyaluronic Acid Lotion
Hada Labo · toner
Vegan Kombucha Tea Essence
Dr. Ceuracle · essence
Skin.Q Serum Concentrado Antioxidante Vitamina C
Quem Disse Berenice · serum
Skin.Q Creme Revitalizador Facial Noite
Quem Disse Berenice · moisturizer
Anthelios UVMune 400 Invisible Fluid SPF50+
La Roche-Posay · sunscreen
Skin.Q Creme Revitalizador Facial Noite
Quem Disse Berenice · moisturizer
