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Acide salicylique (BHA) : le guide pour une utilisation sécurisée sur peau grasse, sensible ou acnéique
3 min

Salicylic acid (BHA): a guide to safe use on oily, sensitive or acne-prone skin

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It's a key ingredient in blemish-fighting skincare : salicylic acid, thanks to its exfoliating and purifying action , brightens the complexion and helps reduce breakouts. But is BHA safe for the skin? What are the real dangers of salicylic acid ? Nooance reviews the scientific studies and gives you its best advice for safely applying exfoliating acids.

Is salicylic acid dangerous for the skin?

No, when used correctly on the skin, salicylic acid is one of the most effective and safe active ingredients for treating blemishes.

The potential danger of BHA actually comes from misuse : overdose, combination of irritating active ingredients, unsuitable skin problems.

This article gives you the keys to understanding the role of salicylic acid and avoiding irritation.

How does BHA (Beta Hydroxy Acid) work to reduce blemishes?

Salicylic acid, or BHA, is a fat-soluble liquid . In other words, it dissolves in oil and can therefore penetrate directly into the pores . Unlike AHAs , which primarily act on the surface, BHA dissolves excess sebum and impurities from within. It thus more effectively targets blackheads (comedones), acne blemishes , and the appearance of enlarged pores .

Its other advantage is its keratolytic action . Rather than "stripping" the skin, salicylic acid helps to gently remove dead cells that accumulate on the surface. This regular exfoliation process makes the skin smoother, reduces imperfections, and improves the effectiveness of other skincare products applied to the skin.

Side effects of salicylic acid: how to avoid them?

Irritation and dryness: signs of a compromised skin barrier

Adverse reactions to salicylic acid include skin irritation, redness, peeling, and tingling. However, these are usually due to an excessive concentration of BHA or overuse.

To introduce BHA into your skincare routine, start by using it a maximum of 2 or 3 times per week . Apply the product alone, without combining it with other exfoliating agents, and always finish with a moisturizer to deeply nourish the skin.

Photosensitivity: an essential precaution

Salicylic acid, due to its exfoliating effect, can cause increased skin sensitivity to the sun. This photosensitivity can be avoided by applying this active ingredient preferably in the evening , and by using a non-comedogenic sunscreen daily to protect your skin from the harmful effects of UV rays.

Sun protection is indeed an essential step when using exfoliants, as explained in our article on thedifference between UVA and UVB .

Poor asset combinations

To limit the risk of irritation, especially on sensitive skin, avoid applying BHA in combination with other exfoliating or powerful active ingredients such as:

  • Glycolic acid (AHA) or lactic acid
  • Retinol: to be used alternately.
  • Vitamin C: best used in the morning.
  • Scrubs with grains are very harsh on the skin.

The Nooance protocol: your personalized beauty routine for clear and healthy skin

Nooance-Paris offers you an expert approach to facial care products to identify your skin type and build a personalized beauty routine that targets your specific needs.

For oily skin and blackheads: the "Purifying" protocol

For blemish-prone skin, BHA is a targeted solution against enlarged pores .

Niacinamide is also an ideal ally . It helps regulate sebum production and strengthens the skin barrier, thus limiting the risk of irritation.

For acne-prone and inflamed skin: the "Clarifying" protocol

Salicylic acid skincare products provide an anti-inflammatory action , helping the skin regenerate and fade acne scars. You can combine them with soothing ingredients like bisabolol or centella asiatica, which calm redness and promote skin renewal.

For sensitive or reactive skin: the "Soothing" protocol

For delicate skin, salicylic acid should be introduced gradually :

  • Perform a patch test before first use.
  • Use low concentrations, less than 1%.
  • Apply your skincare products once a week to start.
  • Combine BHA with ceramides or other hydrating ingredients such as hyaluronic acid.

The Nooance formulation: the uncompromising effectiveness of salicylic acid

By choosing high-quality cosmetic formulations, you can enjoy the benefits of salicylic acid without risk to your skin. At Nooance, BHA is precisely dosed and combined with complementary active ingredients that guarantee powerful action while respecting the skin's natural balance. It's the key ingredient in our Clarifying Treatment , formulated for maximum effectiveness and tolerance.

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