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FUSION Regenerating Ultra Serum

Restorating & Hydrating Formula for Face, Neck and Eye Contour

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The Go-To Soothing Treat for Sensitive and Distressed Skin

Rich in vitamins A, B, C and E, this serum-gel helps soothing dry-to-sensitive and dehydrated skins, to regain comfort and hydration.

This complex of hyaluronic acid and organic ingredients such as African tamanu nuts and kelp extracts visibly improve skin texture. Tamanu oil protects the skin from the effects of environmental stressors that cause dehydration, and helps to replenish the skin’s moisture barrier, while restoring suppleness and elasticity.

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Key Ingredients

Hyaluronic Acid (HA)

Produced naturally by the skin, but less and less with age, hyaluronic acid can contain up to 1000 times its weight in water. It allows hydration of the deep layers of the skin, creating a plumping effect and reducing the appearance of wrinkles and fine lines. Our proprietary HA blends eliminate all types of glycols and optimize the delivery of active ingredients.

Organic African Tamanu Virgin Oil 

Pure, undiluted tamanu oil has a variety of health benefits for the skin due to its high content of beneficial fatty acids. It accelerates the healing process and reduces skin inflammation in addition to preventing premature aging by neutralizing free radicals.

Natural Agastache Mexicana 

Rich in flavonoids, Mexican agastache is a medicinal plant used for its soothing and anti-stress properties. And with its moisturizing, anti-redness, brightening, toning and relaxing agents, it's a must-have ingredient in our formula. At FEY, we only use agastache from sustainable and fair trade crops.

Grapefruit Seed Extract

A vitamin C powerhouse, with great antioxidant, antimicrobial and healing properties.

Organic Algae Extract

One of the best sources of iodine, vitamins B and E, Sea Kelp possesses wealthy amounts of essential vitamins, minerals, amino acids, and antioxidants. It also protects the skin from environmental pollutants, thus keeping the skin looking as vibrant and supple as possible.

How to Use

FUSION can be applied to:

Face, neck, décolleté and eye contour areas. Can also be applied on dry to sensitive hands.

How to apply FUSION?

Face, neck, décolleté: For daily use whenever your skin feels sensitive, irritated or needs replenishing.
The serum should be applied to freshly cleansed wet skin. Gently rub two drops of serum onto moistened face, neck and décolleté area in circular movements. Wait until the serum is completely absorbed before applying any other skincare product or makeup. 
Refer to FEY Skincare Rituals corresponding to your skin type to learn more.

Eye contour: Apply, with the tip of your finger and on wet skin, one single drop of FUSION on the whole eye contour. It is important that the product does not come into contact with the eyes.

Free Shipping

Canada and the United States

Free expedited shipping in Canada and free standard shipping in the United States for all orders over CA$69.99 (before sales tax and after discounts). Shipping is just CA$13.00 otherwise.


Free worldwide standard shipping for all orders over CA$249.99 (after discounts).

All orders are trackable.

See our Shipping Policy for more details.

Free 30-day returns

We are committed to providing quality products to our customers. While we hope that you are always satisfied with your FEY Cosmetics purchase, we realize there are times that you may need to return a product.

Free 30-day returns - See our Free Returns Policy for more info.

FUSION Best Hyaluronic Acid Repairing & Soothing Face Serum | FEY Cosmetics | FUSION Le meilleur sérum visage régénérant, apaisant et hydratant à l&
FUSION Best Hyaluronic Acid Repairing & Soothing Face Serum | FEY Cosmetics | FUSION Le meilleur sérum visage régénérant, apaisant et hydratant à l&

Our Guarantees

  • Plant-Based Clean Skincare

  • Organic & Natural Ingredients

  • Gender Neutral

  • Handcrafted in Canada


Do you have a full ingredients list?

96% of naturally derived and organic ingredients including 1.7% of hyaluronic acid

Aqua/Water/Eau, Propanediol‡, Glycerin‡, Sodium Hyaluronate‡, Calophyllum Inophyllum Seed Oil*, Laminaria Digitata Extract*, Proline, Sclerotium Gum‡, Lecithin‡, Lysine HCl‡, Glycine‡, Citrus Paradisi (Grapefruit) Seed Extract‡, Agastache Mexicana Flower/Leaf/Stem Extract‡, Hibiscus Sabdariffa Fruit Extract*, Magnesium Ascorbyl Phosphate, Pullulan‡, Sodium Levulinate‡, Inulin Lauryl Carbamate‡, Xanthan Gum‡, Erythritol‡, Tocopheryl Acetate‡, Potassium Sorbate, Lactic Acid‡ * Organic ‡ Naturally-derived

FUSION is free of artificial fragrances, butylene glycol, mineral oils, paraben, phenoxyethanol, propylene glycol, and silicone.

Why are your serums called Ultra Serums? What is the difference with traditional face serums?

As a whole new generation of facial serums, Ultra Serum stands for “Ultra Concentrated, Ultra Efficient”.
The result of years of laboratory research, our Ultra Serums are packed with powerful bioactive plant extracts and concentrated with up to 2% in hyaluronic acid. Non-oily and with a pleasant texture, halfway between an ordinary serum and a gel, they help reinforce hydration and effectively target the signs of skin aging (fine lines and loss of firmness) and its imperfections.

Is this serum suitable for my skin type?

FUSION is suitable for all skin types; It is highly recommended for dry to sensitive and dehydrated skins. It helps fight sensitivity due to dryness and dehydration, as well as against uneven skin texture and redness. It is also great as an aftershave solution. Also it does not contain essential oils.

This product contains hyaluronic acid, why is it so important?

All of our water-based serums and mists, as well as our anti-ageing creams, contain a hefty amount of hyaluronic acid.
This tiny molecule has huge effects! Hyaluronic acid is known for its essential role in fighting the signs of skin aging. In addition to deeply moisturizing the skin, it helps restore its softness, firmness, structure and elasticity.
That's why we've developed a new generation of concentrated formulas that combine high and low molecular weight hyaluronic acid fragments with other highly effective natural ingredients.

Do you use phenoxyethanol, parabens or glycols?

No. Also we do not use any of the so-called -dirty dozen-: parabens, fragrances, sodium laureth sulfate (SLS), triclosan, petrolatum, PEGS, formaldehyde-releasing preservatives, siloxanes, DBP dibutyl phthalate), Cocamide DEA and Lauramide DEA, BHA and BHT, coal-tar dyes (C.I.).

Find out more in our blog.

I still have questions.

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Customers Reviews

Customer Reviews

Based on 113 reviews
Hydrate et adoucit ma peau

J’adore ce sérum qui hydrate vraiment bien ma peau. Je l’applique aussi en contour des yeux et sur les mains !

louise d.
J’adore et je recommande ! Produits de grandes qualités !

J’adore ce lait nettoyant, il n’****èche nullement ma peau mais je la sens nettoyée comme il faut ! En fait j’adore mon rituel anti age !

Christine F.
Un sérum vivifiant

J'aime beaucoup le sérum FUSION. Je sens ma peau se regénérer littéralement. Je l'utilise aussi pour le contour des yeux et je sens une différence au bout de quelques semaines déjà. J'ai définitivement trouver ma gamme de produits. Merci