Skip to product information
1 of 2

Anti-Aging - Concentrated Hyaluronic Acid

Top Seller

TONUS Skin Firming Ultra Serum

Skin Tightening, Lifting & Pore Minimizing Face Serum

Rated 100/100 onYuka logo

Regular price
Regular price
Sale price

Firmer, Tighter, and More Youthful-Looking Skin

As a concentrated formula of hyaluronic acid and plant extracts, this firming and tightening serum-gel helps restore skin firmness and elasticity to the face and neck for a smoothing effect and a rejuvenated facial contour.

At the heart of this complex of natural active ingredients is the organic rosehip extract that is rich in plant derivatives of vitamin C and vitamin E. It helps minimize the visible signs of sagging skin and imperfections by reducing the effects of collagen and elastin loss.

Benefits: Instant lifting effect ● Tightens face & neck line ● Strengthens skin firmness & elasticity ● Helps redefine facial contours

Type: Face firming serum, pore minimizer serum, face skin tightening treatment

Cruelty-free, vegan and natural skin care ● Gender neutral - Made for both women and men ● Earth-friendly glass containers and FSC-certified recyclable paper packaging

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 Rosehip

A goldmine of essential fatty acids and vitamins A & C, which play a key role in improving the skin texture and reducing hyperpigmentation. Rosehip also helps moisturize the skin for a smooth, plumped appearance.

Organic Green Alga (Chlorella)

Rich in peptides and amino acids, it is known to boosts the collagen, increases the firmness and tone of the skin while creating a protective barrier against environmental pollutants.

Organic Aloe Vera

Aloe vera has many dermatological benefits in addition to its moisturizing properties. Filled with antioxidants and vitamin C, it is also beneficial in the treatment of inflammatory skin diseases.

Organic Australian Wild Rosella (Hibiscus) 

Wild rosella is a resilient flower, adapted to the harsh conditions of northern Australia. Concentrated in antioxidants and vitamins A, C and E, it also has a very high content of natural betaine. This gentle compound helps the skin to balance and maintain its moisture level.

How to Use

TONUS can be applied to:

Face, neck and décolleté area.

How to apply TONUS?

For daily use and whenever your skin needs more freshness and firmness.
The serum should be applied to freshly cleansed wet skin. Gently rub 2 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.

Free Shipping

Canada and the United States

Free fast shipping in Canada and free standard shipping in the United States for all orders over CA$59.99 (before sales tax and after discounts). Shipping is just CA$10.00 in Quebec, and CA$16.00 in the rest of Canada and in the United States.


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

All orders are trackable.

See our Shipping Policy for more details.

Easy 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.

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

TONUS Best Anti-Aging Facial Firming & Tightening Face Serum | FEY Cosmetics | TONUS Le meilleur sérum visage anti-âge raffermissant et liftant
TONUS Best Anti-Aging Facial Firming & Tightening Face Serum | FEY Cosmetics | TONUS Le meilleur sérum visage anti-âge raffermissant et liftant - Lifestyle

What the Media Say About It

  • Our most delightful discovery of the year!

    Philippe Lépine, The Huffington Post


Do you have a full ingredients list?

95% of naturally derived and organic ingredients including 1.1% of hyaluronic acid

Aqua/Water/Eau, Propanediol‡, Glycerin‡, Sodium Hyaluronate‡, Rosa Canina Fruit Oil*, Hibiscus Sabdariffa Fruit Extract*, Aloe Barbadensis Leaf*, Chlorella Pyrenoidosa Powder*, Vitis Vinifera (Grape) Seed Extract‡, Lecithin‡, Pullulan‡, Citrus Paradisi (Grapefruit) Seed Extract‡, Tocopheryl Acetate‡, Magnesium Ascorbyl Phosphate, Sodium Levulinate‡, Inulin Lauryl Carbamate‡, Sclerotium Gum‡, Xanthan Gum‡, Erythritol‡, Potassium Sorbate, Citric Acid‡ * Organic ‡ Naturally-derived

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

My main skin concern is ageing and I already have an anti-ageing day cream. Do I need this serum?

Just like ÉCLAT, TONUS was created with mature skin in mind, and is often used as an alternative to or in addition to an anti-ageing cream.
TONUS targets specific concerns: loss of skin firmness and elasticity. Formulated to create a lifting, tightening, and smoothing effect, TONUS creates a very thin film on the surface for an instantly improved skin appearance.
We recommend you pair it with PERLE, our nourishing and protecting day cream, for optimal results.

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?

TONUS is suitable for all skin types, especially for oily and mature skins. Great to fight against loss of skin firmness and elasticity. 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.

Have you checked our general Frequently Asked Questions?

Can't find what you're looking for?

Send us an email to tell us what's up and someone from our Customer Service team will get back to you as soon as possible.
Please email us at

Our Guarantees

  • Plant-Based Clean Skincare

  • Organic & Natural Ingredients

  • Gender Neutral

  • Handcrafted in Canada

Customers Reviews

Customer Reviews

Based on 139 reviews
Martine G.
Tonus ultra-serum raffermissant

Vraiment une belle découverte! Effet lifting presque instantané, un beau produit!

Camille L.

Service à la clientèle excellent et réponse rapide. J'adore

Isabelle M.
Excellent sérum pour le matin

Ce sérum présent dans la trousse anti-âge est vraiment très efficace pour hydrater ma peau. Et j'aime la sensation de "tenseur. qu'il apporte. Je l'utilise avant la crème de jour. La texture est très agréable et le soin est très bien accepté par ma peau réactive. Bref un succès à 100% pour moi.