Hyaluronic acid is one of the most widely used ingredients in modern cosmetics — and for good reason. But few people know how it actually works and why the size of its molecules matters. Here's a short explanation.
What is hyaluronic acid
Hyaluronic acid (HA) is a substance that occurs naturally in the skin, joints, and eyes. In the skin, it acts as a humectant — meaning it attracts and holds water. Studies show that hyaluronic acid can hold up to about 1000 times its own weight in water, making it an exceptional moisturizer.
With age and under the influence of external factors (UV rays, pollution, air conditioning), hyaluronic acid levels in the skin decrease. The result: skin looks drier, thinner, and shows more visible fine lines.
Why molecular size matters
This is the key point most people miss. Hyaluronic acid comes in different molecular sizes, and each size works at a different level:
- High molecular weight (HMW): larger molecules stay on the skin's surface, forming a protective layer that reduces water loss and gives an instant feeling of smoothness and plumpness.
- Low molecular weight (LMW): smaller molecules penetrate deeper into the skin and provide longer-lasting hydration.
That's why a formula that combines several molecular sizes hydrates the skin on multiple levels at once — from the surface to the deeper layers. This is more effective than a single size.
COBACCO Hydraperfector uses exactly this principle — 5 types of hyaluronic acid of different molecular sizes, boosted with algae and marine minerals for multi-layer hydration.
What well-hydrated skin looks like
Hydration isn't just a cosmetic effect. Well-hydrated skin is more elastic and more resilient. When the skin holds enough water, it looks plumper, fine lines are less visible, and the complexion is more radiant. Hyaluronic acid also has soothing properties, making it suitable even for sensitive skin.
How to use hyaluronic acid correctly
- Apply the serum to slightly damp skin — this way there's more water for it to hold onto.
- "Seal in" the hydration with a moisturizer on top so the moisture doesn't evaporate. (That's why serum + cream work better together.)
- Can be used morning and evening, suitable for every skin type.
Frequently asked questions
Is hyaluronic acid suitable for oily skin?
Yes. It's a humectant, not an oil — it hydrates without weighing skin down, making it suitable for every skin type, including oily skin.
When should I apply hyaluronic acid serum — morning or evening?
Both. In the morning under sunscreen, in the evening under night cream.
Why does my skin feel drier after using hyaluronic acid?
In very dry air, hyaluronic acid can "pull" water from the skin instead of the air. The solution: apply to damp skin and always follow with a moisturizer to lock in hydration.
What's the difference between the types of hyaluronic acid?
The main difference is molecular size — larger molecules hydrate the surface, smaller ones penetrate deeper. A formula with several sizes works on more levels.
Want deep, multi-layer hydration? Discover COBACCO Hydraperfector — a serum with 5 types of hyaluronic acid.
