Kerzon 
Gym Tonique, Athletic & Technical Fibers

The specific formulation of the laundry soap accompanies the intensity of your sporting outings by offering your clothes a fresh and lasting care. Combined with coconut and olive oils, baking soda captures bad odors and guarantees extraordinarily efficient cleanliness while preserving the fibers’ technical properties.

Stimulating and robust, Gym Tonique scent is based on a fresh and invigorating citrus blend associated with notes of clean "soap bubbles" on an ultra-technical woody base of musk and juniper, to smell good until the final sprint.


Tested under dermatological control, Gym Tonique laundry soap is non-irritating and respectful of sensitive skin.

- Softening and soothing formula.

- Ensures a dazzling clean for all purpose washing.

- Machine and hand-wash friendly.

- Bottle 100% recycled from household waste.

- Preserves the effectiveness of technical fibers of your textiles.

- Enriched with baking soda to neutralize bad smells.

- 100% biodegradable formula in less than one month

- Refillable in store, or by returning your bottle with The Loop.

- Formulated and made in France.

- Tested under dermatological control, respects sensitive skin

- Formulated with natural coconut and olive oils.

For an ideal dosage, we recommend you to pour the equivalent of 40 ml per wash into the drawer of your washing machine without adding any softener, the formulation does this wonderfully.

5 or more but less than 15% soap, PARFUM (fragrance), SODIUM BICARBONATE, GLYCERIN, COCOS NUCIFERA (coconut) OIL, OLEA EUROPAEA (olive) FRUIT OIL, BENZYL ALCOHOL, LINALOOL.

We do not believe that CLEAN products are a must or the answer to every skin care problem. But we want to provide a quick guide for those who want to avoid certain ingredients.

Our Clean Beauty concept is primarily defined by the ingredients you won't find in the products with the CLEAN icon:

BHA (butylated hydroxyanisole), BHT (butylated hydroxytoluene), chemical sunscreens, EDTA, ethanolamines, ethoxylated ingredients (Ceteareth-20, emulsifying wax, PEGS, polysorbate-20, polysorbate-40, steareth-20, sulfates), formaldehyde, methylchloroisothiazolinone and methylisothiazolinone, methylcellulose or 2-methoxyethanol, nitro- and polycyclic musk, parabens, petrolatum and paraffin, phthalates, resorcinol, silicones, animal by-products (with the exception of lanolin and beeswax), toluene, triclosan and triclocarban.

With this icon you can see at a glance which products meet the standard of our CLEAN Guide.

Read more in the STUDIO about THE NICHE CLEAN GUIDE!