Hyaluronic acid: the star active ingredient for plumped and radiant skin
Often reduced to its “plumping” capacity, hyaluronic acid is above all a **cellular water modulator**. When used properly, it boosts the skin’s **natural ability to retain moisture**, without feeling sticky or tight.
Beyond “filling”: the signaling role of HA
Hyaluronic acid acts like a **molecular hairdryer**: it attracts and retains water, but its effects depend on **its molecule size, concentration and skin environment**.
A water technology. The goal is not to inject water, but to have it **naturally rebuilt**.
Variants & uses
High molecular weight hyaluron
Soothes the surface, provides immediate comfort (light occlusive effect).
Low molecular weight hyaluron
Penetrates deeper, activates hydration of the deep layers (but be careful on sensitive skin).
Hyaluron buffer / multi-weight
Mix of long & short chains for a more balanced, layered action.
The criteria to check
- Viscosity & slip (inference on molecular size)
- Active concentration (< 2% for safety)
- Compatible associations (ceramides, peptides, polyphenols)
Optimal routine with hyaluronic acid
Slightly damp skin
Apply to skin that is still slightly damp (water spray or fine mist).
Hy-gel or HA concentrate
Place a small dose (rice seed) to avoid the “glue tube” effect.
Seal with light lipids
Ceramides, squalane, light oils to maintain the water bridge and prevent evaporation.
Daily routine / protection
In the morning, add antioxidants + SPF. In the evening, supplement with targeted active ingredients (peptides, prebiotics).
Myths & Realities Around HA
| Myth | Reality |
|---|---|
| “The more concentrated, the better.” | Too high a concentration (< 1–2%) can create a reverse osmosis effect and dry out. |
| “You have to apply it alone.” | Better tolerated in **gentle synergy**: few “strong” ones the same evening. |
| “HA = instant plumping.” | The skin must be sufficiently hydrated and well-lipidized for the effect to be visible. |
To remember
Hyaluronic acid is not a “magic” ingredient, but a water technology. When used correctly, in the right dosage, and in an optimal skin environment, it supports hydration and relief—without overloading or compromising.
