The Most Powerful Collagen Mask on the Market

It's 6 p.m. You have a dinner at 10 and an end-of-day face. Good news: you have exactly the time you need. Four hours. That's the promise of Sampar's Hydrafuse Collagen 4h Mask: a ritual that turns tired skin into plumped, smoothed, luminous skin, in the space of an evening.

The mask that turns transparent

Forget the dripping sheet mask. Hydrafuse is a two-part bio-collagen hydrogel that hugs the face and releases the equivalent of 30 ml of serum directly onto your skin. Its distinctive feature: it turns transparent when your skin has absorbed everything. Opaque at the start, clear at the end: you see the exact moment the treatment has finished its work.

Leave it on for 4 hours for an express radiance boost, or overnight for a more intense treatment. To choose, read our guide: how long to leave on a collagen mask.

The secret: collagen under 100 daltons

Everyone puts "collagen" on their packaging. But collagen is a large molecule: standard collagen weighs several hundred thousand daltons, far too heavy to cross the surface of the skin. It just sits on top.

Sampar chose a very low molecular weight collagen, under 100 daltons, one of the finest on the market, when many bio-collagen masks hover around 240 Da. At this size, collagen penetrates the stratum corneum instead of staying on the surface, and acts as a moisturizing, film-forming agent that holds in water and visibly plumps the skin. Finer, better absorbed: plumper skin.

Up to +31% hydration in 4 hours

Sampar's promise is "Be beautiful without waiting". With Hydrafuse, you can see it:

• Up to +31% hydration in just 4 hours
• Skin that's visibly plumped, features smoothed, dehydration lines softened
• Visually tightened pores, a refined skin texture
• A revived radiance, glass skin effect
• No rinsing: you massage in the leftover serum, and that's it

A formula designed for radiance

• Hyaluronic acid — the benchmark moisturizer, which holds in water and creates a protective film for supple, comfortable skin.
• Niacinamide — refines skin texture, tightens the look of pores and helps even out the complexion.
• Vitamin C — a radiance-boosting antioxidant, which helps revive dull skin.
• Low molecular weight collagen water — the moisturizing, plumping agent that gives the mask its name.
• Adenosine and red algae extract — to soothe and support visibly smoother skin.

Formulated in France, made in Korea. Suitable for all skin types.

The perfect ritual

1. Cleanse your face. The mask is applied on clean, bare skin, with no cream or serum.
2. Open the sachet, unfold the two parts and remove the soft film to release the soaked side.
3. Apply serum side against the skin and adjust on the face.
4. Wait 4 hours, or all night.
5. Remove the mask once it has turned transparent, then massage in the remaining serum. No rinsing.

Please note: the mask doesn't stick to a beard. For the lower face, choose hair-free skin.

Why Sampar?

Because behind the radiance, there's a real house. Sampar has been Parisian cosmetics since 1984, founded by Patrick Sounigo, a doctor by training who gave it all up to create intelligent skincare.

• Formulated in France, and made in Korea for its unique expertise in hydrogel masks
• Sold in pharmacies — and selected on board Transavia, the ally of long journeys
• 4.6/5 from nearly 3,000 customer reviews
• Visible results from the first application

Frequently asked questions

Is the mask reusable?

No. The hydrogel empties completely as it releases its actives: once transparent, it has given its best.

How many times a week?

Once a week for maintenance. As an intensive course, several times in the same week.

Is it suitable for sensitive skin?

Yes, it is formulated for all skin types. If in doubt, test it on the inner elbow 48 hours beforehand.

4 hours or all night?

Both: 4 hours for express radiance, overnight for more intense hydration on waking.

Discover the Hydrafuse Collagen 4h Mask →

Be beautiful without waiting.