Hyaluronic Acid: Natural Moisture Reservoir for Nourished, Firm Skin

Few active ingredients have received more attention in recent years than hyaluronic acid. As an endogenous molecule, it is extremely well-tolerated, extensively scientifically proven, and suitable for almost all skin types. At the same time, it is an important building block for maintaining a healthy skin barrier.

What is Hyaluronic Acid?

Hyaluronic acid is a glycosaminoglycan – a naturally occurring polysaccharide found in large quantities in the human body in the skin, joints, and the vitreous humor of the eye. In the skin, it is produced by fibroblasts and keratinocytes and plays a central role in structuring connective tissue and binding water. With increasing age, the body's own production decreases, contributing to volume loss and reduced elasticity. For cosmetic products, hyaluronic acid is now biotechnologically produced through fermentation – without animal-derived ingredients.

How Does Hyaluronic Acid Work on the Skin?

The special characteristic of hyaluronic acid is its exceptional water-binding capacity: one gram of hyaluronic acid can bind up to six liters of water. As a humectant, it draws moisture from the environment and from deeper skin layers into the stratum corneum. The decisive factor for its depth of action is molecular weight: High-molecular-weight hyaluronic acid (over 1 MDa) forms a moisture-retaining film on the skin's surface. Low-molecular-weight variants (under 100 kDa) can penetrate into the upper epidermal layers and act more deeply there. Very short-chain fragments (oligomers) are controversially discussed in research; their tolerability depends on concentration and formulation.

Benefits and Effects of Hyaluronic Acid

Hyaluronic acid measurably improves skin hydration, reduces transepidermal water loss (TEWL), and makes the complexion appear plumper and more even. With consistent use, skin elasticity is improved, and fine, dehydration-related lines appear reduced. In combination with antioxidants like Vitamin C, a synergistic care effect is created: while hyaluronic acid stores moisture, antioxidants protect against oxidative cell damage. The skin becomes more resilient and even.

Application and Tolerability

Hyaluronic acid is ideally applied to slightly damp skin – this allows the molecule to absorb moisture from the environment and hold it in the stratum corneum. In very dry ambient air, a moisturizer should be applied immediately afterward to seal in the moisture (occlusion). Hyaluronic acid is common in concentrations of 0.1–2% in serums, creams, and ampoules. Tolerability is excellent: even sensitive, rosacea-prone, or post-procedural skin usually tolerates hyaluronic acid without problems. Allergic reactions are extremely rare.

Combination with Other Active Ingredients

Hyaluronic acid harmonizes with almost all other active skincare ingredients. The combination with ceramides (barrier strengthening), panthenol (cell regeneration), niacinamide (tone firming), and peptides (structural support) is particularly beneficial. As a basic moisturizing layer, it is the ideal base for subsequent potent active ingredient products. When combined with retinol or AHA, hyaluronic acid has a soothing effect and buffers possible irritations.

Who is Hyaluronic Acid Suitable For?

Hyaluronic acid is suitable for all skin types – from dry to oily skin, from young to mature skin. Pregnant women and people with sensitive skin can also use hyaluronic acid without hesitation. It is one of the few active ingredients without significant restrictions in widespread use.

Frequent Questions about Hyaluronic Acid

Does Hyaluronic Acid Make Skin Permanently More Moisturized?

Hyaluronic acid binds moisture as long as it is present on or in the skin. It does not have a permanent restructuring effect like retinol or peptides. Regular use is necessary for lasting results.

Is Hyaluronic Acid in Creams as Effective as in Serums?

This depends on the concentration and molecular weight, not primarily on the texture. A well-formulated serum with multiple molecular weights can be more effective than a cream with only one form – but creams can also contain effective hyaluronic acid concentrations.

Can Hyaluronic Acid be Combined with Vitamin C?

Yes, and it is even recommended: Vitamin C (especially L-ascorbic acid) is pH-dependent and can cause slight irritation at a low pH. Hyaluronic acid helps maintain moisture and has a balancing effect. First apply Vitamin C serum, then hyaluronic acid.

Why Should Hyaluronic Acid be Applied to Damp Skin?

As a humectant, hyaluronic acid binds water from its surroundings. Without sufficient moisture in the ambient air or on the skin, it can draw moisture from deeper skin layers and have a counterproductive effect in very dry conditions. Sealing with a moisturizer afterward prevents this effect.

Conclusion

Hyaluronic acid is one of the most reliable options for anyone looking for effective yet gentle moisturizing care. Its excellent tolerability, wide applicability, and scientific data make it an indispensable active ingredient in any modern skincare routine.

The Porcelain Skin Serum is an excellent complementary care solution for daily routine.

Current scientific findings emphasize the importance of hyaluronic acid for a well-founded, sustainable skincare strategy (as of 2025).

The Blue Crystal Drops, with its mild formulation, is particularly suitable for skin prone to redness and sensitive skin.

Sources

• DermNet NZ – Hyaluronic Acid
• PubMed – Hyaluronic Acid & Skin Research