Warning: These exfoliating acids (AHAs, BHAs, PHAs) can transform or ruin your skin!
Having glowing, smooth skin is no longer an unattainable dream. Exfoliating acids, such as AHAs, BHAs, and PHAs, play a crucial role in improving your skin's texture and health. But what distinguishes these acids from one another? And most importantly, which one is right for you?
Understanding exfoliation: chemical vs. mechanical
Exfoliation aims to remove dead cells that have accumulated on the surface of the skin. There are two main methods:
- Mechanical exfoliation : performed using grains or brushes that act by friction. However, it can be abrasive and damage the skin barrier.
- Chemical exfoliation : uses acids to remove dead skin cells without rubbing, thus preserving the health of the skin.
AHAs: acids for instant radiance
Alpha Hydroxy Acids (AHAs) are water-soluble and ideal for dry skin. They exfoliate the surface while maintaining skin hydration. Here are the main ones:
- Glycolic acid : derived from sugar cane, it is highly effective thanks to its small molecular size. It improves skin texture, evens out skin tone, and regulates sebum production.
- Lactic acid : obtained through fermentation, it is gentle and ideal for sensitive skin. It promotes hydration while gently exfoliating.
- Mandelic acid : derived from almonds, it acts on the surface, reducing the risk of irritation. It is perfect for combating hyperpigmentation.
BHAs: allies against blemishes
Beta Hydroxy Acids (BHAs), such as salicylic acid, are fat-soluble, which allows them to penetrate clogged pores. They are suitable for combination to oily skin prone to acne.
- Salicylic acid : effective against blackheads and pimples, it reduces inflammation and refines skin texture.
PHAs: gentle exfoliation for sensitive skin
Poly Hydroxy Acids (PHA) have a larger molecular size, which limits their penetration into the skin. They are therefore ideal for sensitive skin or skin prone to conditions such as rosacea.
- Lactobionic acid : intensely moisturizes, reduces inflammation, and prevents signs of aging.
- Gluconolactone : acts as an antioxidant and improves water retention.
The benefits of exfoliating acids
- Cell renewal Regular exfoliation boosts skin cell renewal.
- Texture enhancement : reduction in enlarged pores and smoother skin.
- Better absorption of treatments : exfoliated skin absorbs the active ingredients in products applied afterwards more effectively.
How to choose the right acid for your skin?
- Dry and dull skin : choose AHAs for their moisturizing properties.
- Oily, blemished skin : Choose BHA to target clogged pores.
- Sensitive skin : Turn to PHAs for gentle exfoliation.
Precautions to be taken
- Apply sunscreen when using acids, as they increase sensitivity to UV rays.
- Introduce acids gradually into your routine to avoid irritation.
Make the right choices for your skin
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