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20% L-ascorbic acid serum, Brazilian-made. Serious dose, unflashy bottle.
Other routine steps with complementary ingredients.
Side-by-side ingredient breakdowns vs. the closest alternatives.
In-clinic and at-home treatments that use the same active ingredients.

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.

Microneedling's gentler, no-downtime sister — a silicone-tip cartridge oscillating at ~150,000 vibrations/min that pushes serums into the epidermis without piercing the skin.

A cocktail of vitamins, amino acids, and hyaluronic acid injected into the superficial dermis — French-born, globally adopted, endlessly remixed.
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Vitamina C 20% Ácido Ascórbico by Principia Skincare is formulated for normal, combination, mature, dullness skin. 20% L-ascorbic acid serum, Brazilian-made. Serious dose, unflashy bottle.
The key active ingredients in Vitamina C 20% Ácido Ascórbico are Vitamin C. It's known for: Clinical vitamin C and Affordable for concentration.
Yes, Vitamina C 20% Ácido Ascórbico targets dullness, hyperpigmentation, fine lines. Clinical vitamin C
Vitamina C 20% Ácido Ascórbico retails for around $75, which places it in the mid range for serums. Check the "Where to Buy" section above for current retailer prices.
The main drawbacks to be aware of: Can sting; Oxidises fast.
A suggested daily routine featuring this product, with complementary picks.
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