All About Hyaluronic Acid: Benefits, Application, and What It Really Does for Your Skin
Hyaluronic acid is arguably the most famous moisturizing active ingredient in modern cosmetics — and for good reason. But between marketing promises and scientific reality, many misconceptions remain. Here's what this molecule really does for your skin, how to use it correctly, and how LILI MARGO integrates it into its Floractiv20+® technology.
6 L
of water retained by 1g of hyaluronic acid
25 years old
age at which its natural production begins to decline
+95%
naturality in LILI MARGO formulas
20+
patented Floractiv20+® floral extracts
What exactly is hyaluronic acid?
Hyaluronic acid (or HA) is not an exfoliating acid like glycolic acid or salicylic acid; its name is often confusing. It is actually a complex sugar (a polysaccharide) naturally present in our body, particularly in the skin, joints, and eyes. In the epidermis and dermis, it acts like a real molecular sponge: a single molecule can hold up to a thousand times its weight in water, making it one of the most powerful moisturizers known to date.
The problem is that its concentration in the skin decreases over time. From the age of 25, our natural production begins to slow down, and this decline accelerates with age, UV exposure, and pollution. The result: the skin retains less water, loses plumpness and elasticity, and dehydration lines appear. Applying hyaluronic acid topically helps to compensate for this surface deficit and restore comfort to the skin.
💡 Misconception
"Hyaluronic acid fills deep wrinkles like an injection." False for topical care: a serum does not penetrate as deeply into the dermis as a medical procedure would. It acts on the surface by plumping up the superficial layers through hydration, visibly smoothing dehydration lines — but it does not replace aesthetic filling.
How does hyaluronic acid work on your skin?
Its mechanism of action is based on a simple but remarkably effective physical property: water attraction. Hyaluronic acid captures water molecules present in the environment and in the deep layers of the skin, then binds them to the surface of the epidermis. This water retention creates a "cushioning" effect that instantly plumps the skin and reduces the appearance of fatigue.
There are also different molecular weights of hyaluronic acid. High molecular weight remains on the surface and forms a protective hydrating film that limits water loss. Low molecular weight, which is finer, penetrates slightly deeper for prolonged hydration. The most advanced formulas combine both for both immediate and long-lasting action. Beyond hydration, well-hydrated dermis better supports collagen synthesis and strengthens the skin barrier.
🔬 Expert tip
Hyaluronic acid needs water to function. In a very dry climate or in a heated home in winter, always apply it to slightly damp skin, then "seal" it with a cream. Applied alone to dry skin in an arid atmosphere, it can, on the contrary, draw water from deeper layers — hence the importance of the occlusive layer that follows.
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Anti-Aging Flower Capsule Serum
A concentration of hydrating active ingredients and 20 patented Floractiv20+® floral extracts to plump, smooth, and firm the skin day after day.
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Proven benefits of hyaluronic acid
The benefits of hyaluronic acid are now widely documented. It intensely and durably hydrates, plumps the skin and visibly reduces dehydration lines, improves elasticity and bounce, and strengthens the skin barrier for skin that is more resistant to external aggressions. Particularly well-tolerated, it suits almost all skin types and combines easily with most other active ingredients. Here are the LILI MARGO products that make the most of it.
📌 Key takeaway
Hyaluronic acid is an exceptional surface moisturizer that plumps the skin and smooths dehydration lines. It doesn't "fill" deep wrinkles but genuinely improves comfort, elasticity, and radiance. For visible results, it must be applied to damp skin and then sealed with a cream, and used regularly as part of a routine.
What skin type can use hyaluronic acid?
It is one of the few truly universal active ingredients. Here's how to adapt it to your skin type.
🌵
Dry skin
Ideal. Always combine it with a rich cream to lock in moisture and prevent a "tight" feeling.
💧
Oily skin
Perfect: it hydrates without weighing down or making skin greasy. Choose light, non-comedogenic serum textures.
🌸
Sensitive skin
Very well tolerated and soothing. It strengthens the skin barrier and calms feelings of discomfort.
✨
Mature skin
Essential: it compensates for the natural decrease in hydration and restores bounce to dehydrated skin.
How to apply hyaluronic acid: the steps
The method matters as much as the product. Start by cleansing your face, then apply your hyaluronic acid serum to still slightly damp skin — this is the secret to maximizing water absorption. Gently pat to allow it to penetrate, without rubbing. Then immediately seal it with a day or night cream, which will form the occlusive layer preventing water from evaporating. Finish in the morning with sun protection. You can use it morning and evening, all year round, and it layers perfectly with vitamin C, retinol, or niacinamide. Regularity is key: it is with daily use, over several weeks, that the benefits for radiance and bounce become visible.
FAQ
Is hyaluronic acid suitable for all skin types?
Yes. It is one of the best-tolerated active ingredients in cosmetics. It is suitable for dry, oily, combination, sensitive, and mature skin, provided the texture is adapted and it is sealed with an appropriate cream.
Does hyaluronic acid really fill wrinkles?
In cosmetics, it plumps and smooths dehydration lines through surface hydration. It improves comfort and elasticity but does not fill deep wrinkles like a medical procedure would.
When should hyaluronic acid be applied in your routine?
After cleansing, on slightly damp skin, before cream. Ideally morning and evening, then sealed with a moisturizing product to prevent water evaporation.
Can hyaluronic acid be combined with other active ingredients?
Yes, it pairs very well with vitamin C, retinol, niacinamide, and peptides. It even helps to limit potential irritation from certain active ingredients by boosting hydration.
How does LILI MARGO integrate hyaluronic acid?
In Floractiv20+® technology, hydration is combined with 20 patented floral extracts and 15 anti-aging factors, in formulas with over 95% naturality, Made in France, and Ecocert certified.
Give your skin floral hydration
Discover the patented Floractiv20+® anti-aging routine and reveal plumped, smooth, and radiant skin.
Discover the routine →
All About Hyaluronic Acid: Benefits, Application Method, and What It Really Does for Your Skin
All About Hyaluronic Acid: Benefits, Application, and What It Really Does for Your Skin
What exactly is hyaluronic acid?
Hyaluronic acid (or HA) is not an exfoliating acid like glycolic acid or salicylic acid; its name is often confusing. It is actually a complex sugar (a polysaccharide) naturally present in our body, particularly in the skin, joints, and eyes. In the epidermis and dermis, it acts like a real molecular sponge: a single molecule can hold up to a thousand times its weight in water, making it one of the most powerful moisturizers known to date.
The problem is that its concentration in the skin decreases over time. From the age of 25, our natural production begins to slow down, and this decline accelerates with age, UV exposure, and pollution. The result: the skin retains less water, loses plumpness and elasticity, and dehydration lines appear. Applying hyaluronic acid topically helps to compensate for this surface deficit and restore comfort to the skin.
"Hyaluronic acid fills deep wrinkles like an injection." False for topical care: a serum does not penetrate as deeply into the dermis as a medical procedure would. It acts on the surface by plumping up the superficial layers through hydration, visibly smoothing dehydration lines — but it does not replace aesthetic filling.
How does hyaluronic acid work on your skin?
Its mechanism of action is based on a simple but remarkably effective physical property: water attraction. Hyaluronic acid captures water molecules present in the environment and in the deep layers of the skin, then binds them to the surface of the epidermis. This water retention creates a "cushioning" effect that instantly plumps the skin and reduces the appearance of fatigue.
There are also different molecular weights of hyaluronic acid. High molecular weight remains on the surface and forms a protective hydrating film that limits water loss. Low molecular weight, which is finer, penetrates slightly deeper for prolonged hydration. The most advanced formulas combine both for both immediate and long-lasting action. Beyond hydration, well-hydrated dermis better supports collagen synthesis and strengthens the skin barrier.
Hyaluronic acid needs water to function. In a very dry climate or in a heated home in winter, always apply it to slightly damp skin, then "seal" it with a cream. Applied alone to dry skin in an arid atmosphere, it can, on the contrary, draw water from deeper layers — hence the importance of the occlusive layer that follows.
Anti-Aging Flower Capsule Serum
A concentration of hydrating active ingredients and 20 patented Floractiv20+® floral extracts to plump, smooth, and firm the skin day after day.
Proven benefits of hyaluronic acid
The benefits of hyaluronic acid are now widely documented. It intensely and durably hydrates, plumps the skin and visibly reduces dehydration lines, improves elasticity and bounce, and strengthens the skin barrier for skin that is more resistant to external aggressions. Particularly well-tolerated, it suits almost all skin types and combines easily with most other active ingredients. Here are the LILI MARGO products that make the most of it.
Hyaluronic acid is an exceptional surface moisturizer that plumps the skin and smooths dehydration lines. It doesn't "fill" deep wrinkles but genuinely improves comfort, elasticity, and radiance. For visible results, it must be applied to damp skin and then sealed with a cream, and used regularly as part of a routine.
What skin type can use hyaluronic acid?
It is one of the few truly universal active ingredients. Here's how to adapt it to your skin type.
How to apply hyaluronic acid: the steps
The method matters as much as the product. Start by cleansing your face, then apply your hyaluronic acid serum to still slightly damp skin — this is the secret to maximizing water absorption. Gently pat to allow it to penetrate, without rubbing. Then immediately seal it with a day or night cream, which will form the occlusive layer preventing water from evaporating. Finish in the morning with sun protection. You can use it morning and evening, all year round, and it layers perfectly with vitamin C, retinol, or niacinamide. Regularity is key: it is with daily use, over several weeks, that the benefits for radiance and bounce become visible.
FAQ
Is hyaluronic acid suitable for all skin types?
Does hyaluronic acid really fill wrinkles?
When should hyaluronic acid be applied in your routine?
Can hyaluronic acid be combined with other active ingredients?
How does LILI MARGO integrate hyaluronic acid?
Give your skin floral hydration
Discover the patented Floractiv20+® anti-aging routine and reveal plumped, smooth, and radiant skin.
Discover the routine →Follow us