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How to Choose the Right Acid for Your Skin

Discover how to choose the right acid for your skin: hyaluronic acid, AHA, BHA, azelaic acid, vitamin C... Expert advice from Pier Augé.

Understanding Acids

In expert cosmetics, acids have become essential allies for improving skin quality. Hydration, radiance, imperfection correction, or prevention of skin aging: each acid acts through a specific mechanism.
However, not all acids address the same needs. Choosing the right acid for your skin requires understanding its role, tolerance, and how it is formulated.
Here's a breakdown of the main acids used in cosmetics and advice for making the right choice.

Why Incorporate Acids into Your Skincare Routine?

Over time, cellular renewal slows down, the skin barrier may weaken, and the skin loses radiance and evenness.
When precisely formulated, acids help support the skin's natural mechanisms without aggression.
They notably contribute to:
  • stimulating cellular renewal
  • smoothing skin texture

    • strengthening hydration

    • improving radiance

    • optimizing the efficiency of other active ingredients

    Hyaluronic Acid: Hydrate and Plump

    Naturally present in the skin, hyaluronic acid is recognized for its exceptional water-retention capacity.

    Its benefits

    • intense hydration

    • plumped and suppler skin

    • immediate skin comfort

    • reduction of dehydration fine lines

    Ideal for:

    all skin types, including sensitive and dehydrated skin.

    AHA Acids: Smooth and Reveal Radiance

    AHAs (Alpha Hydroxy Acids), such as glycolic or lactic acid, primarily work on the surface.

    Their role

    • gentle exfoliation

    • stimulation of cellular renewal

    • improved radiance

    • smoother and more even skin texture

    Ideal for: 

    dull, uneven skin or skin with first wrinkles.

    BHA Acids: Purify and Regulate

    BHAs (such as salicylic acid) are lipid-soluble, allowing them to penetrate deeper into pores.

    Their Benefits

      • pore decongestion 

      • regulation of excess sebum

      • reduction of imperfections

      • visibly clearer skin

      Ideal for: 

      combination to oily skin, prone to imperfections.

      Azelaic Acid: Unifying and Soothing

      Recognized for its high tolerance, azelaic acid is a multifunctional active ingredient.

      Its Strengths

      • improved skin tone evenness

      • reduction of redness

      • action on imperfections

      • respect for sensitive skin

      Ideal for: 

      reactive skin, prone to redness or uneven complexion.

      Hypochlorous Acid: Protect and Soothe

      Naturally produced by the body, hypochlorous acid plays a key role in skin defense.

      Its Benefits

        • soothing of weakened skin

        • support of the skin barrier

        • limitation of inflammation

        • excellent tolerance

        Ideal for: 

        sensitive, irritated, or weakened skin.

        Ascorbic Acid: Radiance and Anti-Aging Prevention

        Pure form of vitamin C, ascorbic acid is a powerful antioxidant.

        Its Actions

          • stimulation of collagen production

          • protection against oxidative stress

          • improved radiance

          • prevention of skin aging

          Ideal for: 

          skin lacking radiance or exposed to external aggressions.

          How to Choose the Right Acid?

          The choice of the right acid depends on:

            • skin type

            • specific needs

            • skin sensitivity

            • overall product formulation

            Expert cosmetics relies on controlled dosages and coherent combinations of active ingredients, designed to respect the skin's natural balance.

            Pier Augé Expertise

            Since 1961, Pier Augé has developed skincare based on scientific research and understanding of skin mechanisms.
            Acids are rigorously selected for their proven effectiveness and optimal tolerance, to support the skin with precision and gentleness.
            A mastered scientific approach, serving smoother, brighter, stronger skin.

            ❓ FAQ – Frequently Asked Questions

            Which acid is most suitable for my skin?

            It depends on your needs: hydration, radiance, imperfections, or sensitivity. Expert formulation allows for the safe use of acids.

            Can multiple acids be used in a routine?

            Yes, provided the active ingredients are properly dosed and formulated to preserve skin balance.

            Are acids suitable for sensitive skin?

            Certain acids, such as hyaluronic acid or azelaic acid, are particularly well tolerated when properly formulated.

            At what age should you start using acids?

            Acids can be incorporated at any age, according to specific skin needs.
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