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Principia's dual-acid exfoliating toner — 7% lactic acid (AHA) + 1% salicylic acid (BHA) in an 8-ingredient formula that's pure Principia minimalism. Lactic acid resurfaces and brightens while salicylic acid clears pores from the inside — the AHA/BHA combo is the single most effective approach for acne-prone skin that also wants texture refinement. At R$50 (~$10 USD), the ingredient list is shorter than most luxury serums' and more effective than most of them too. The Ordinary wishes they'd thought of this first.
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AL-07 Tônico com 7% Ácido Lático + 1% Ácido Salicílico by Principia Skincare is formulated for oily, combination, acne-prone, normal skin. Principia's dual-acid exfoliating toner — 7% lactic acid (AHA) + 1% salicylic acid (BHA) in an 8-ingredient formula that's pure Principia minimalism. Lactic acid resurfaces and brightens while salicylic acid clears pores from the inside — the AHA/BHA combo is the single most effective approach for acne-prone skin that also wants texture refinement. At R$50 (~$10 USD), the ingredient list is shorter than most luxury serums' and more effective than most of them too. The Ordinary wishes they'd thought of this first.
The key active ingredients in AL-07 Tônico com 7% Ácido Lático + 1% Ácido Salicílico are Salicylic Acid, Lactic Acid. It's known for: 7% lactic acid + 1% salicylic acid — AHA/BHA dual exfoliation and only 8 ingredients — radical minimalism.
Yes, AL-07 Tônico com 7% Ácido Lático + 1% Ácido Salicílico targets acne, pores, oiliness, dullness. 7% lactic acid + 1% salicylic acid — AHA/BHA dual exfoliation
AL-07 Tônico com 7% Ácido Lático + 1% Ácido Salicílico retails for around $10, which places it in the budget range for toners. Check the "Where to Buy" section above for current retailer prices.
The main drawbacks to be aware of: the 1% salicylic acid concentration is moderate, not maximum; requires SPF the next morning (AHAs increase photosensitivity); alcohol present — may concern sensitive-skin users.
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