Four Reasons Professional

Fiber Mousse

6.56 FL oz

  • Fiber-rich mousse is the ideal base product for voluminous blow-outs
  • Weightless volume and flexible hold
  • Heat protection for blow-drying
  • Works especially well with fine hair

Cruelty free
& Vegan

Recyclable materials for

European quality
& reliability

Sustainable manufacturing

Fiber Mousse gives bounce and flexible, long-lasting hold

A fiber mousse that gives hairstyle flexible, long-lasting hold and bounce. Fibers add support for the style while letting hair move naturally. Enjoy voluminous hair with fullness that lasts! Four Reasons Professional Fiber Mousse is a professional-quality product created from the best ingredients. It has a vegan formula and recyclable packaging.

Key ingredients

Vegan formula

Vegan and cruelty-free formulas ensure we use only the best ingredients

Sustainable packaging

Recycled materials are used in packaging, and its 100% recyclable when empty.

Full list of ingredients + -

Aqua, Butane, Propane, Alcohol Denat., Polyquaternium-68, Propylene Glycol, Isobutane, Polyquaternium-11, Cocotrimonium Methosulfate, PEG-40 Hydrogenated Castor Oil, Ceteareth-20, Laureth-4, PEG-90M, Triethanolamine, Phenoxyethanol, Ethylhexylglycerin, Parfum, Alpha Isomethyl Ionone, Benzyl Salicylate, Butylphenyl Methylpropional, Citronellol, Geraniol, Limonene, Linalool.

Fiber Mousse gives bounce and flexible, long-lasting hold

How to use

Apply evenly to washed, towel-dried hair, focusing on the roots

Comb through to spread product evenly


Style as desired

PRO TIP: Get bouncy, super-soft curls that last all day long!

Customer Reviews

Based on 39 reviews
Harold Sipes
Great for ballet buns

No one has curly hair in my household, but we need to make ballet buns for dance and I wanted a vegan option so tried this mousse and it worked great. We put some on dry hair to keep the fly aways and fine hair to stick to the head for a neat bun and it worked really well and the style lasted. Two thumbs up!Just wanted to add that it's been a full week of ballet classes and my daughters prefer this over hairspray. It smells good unlike hairspray and it doesn't turn your hair a white powdery mess and it moves with your hair, but keeps it together. My daughters give a resounding yes to this mousse.

Yvette William
Really added volume

We have thinning hair in our household and thought we would give this a try. My mom has very fine straight hair and I have relaxed semi kinky hair for reference. We both love it!Both mom and I used this after a wash and towel dry. It is a mousse that when rubbed in your hair produces fibers to make your hair fuller. Both of us achieved a fuller look after blow dry. I also curl my hair and I got curls that were more refined and held up longer than usual.My dark hair seemed to have a bit more shine but mom did not notice that with her lighter hair.We both highly recommend this volumizing thickening mousse.

Josephine Martin
Fab fiber mousse

I have short and straight with little to no volume hair. I curl it to give it volume but don’t usually use anything after as I haven’t found anything that gives volume without making it stiff, crunchy and flaky. Well, I believe I found that product that provides volume and let’s my hair move naturally. It took a few tries to figure out how much to use but I’ve since found what works and it works pretty good. My hair looks fuller while still maintaining the volume for a curler without all the messiness from other products. I found that a little goes a long way, so start out with less than what you would think you need, besides, you can always add more but you can’t take away if you’ve added too much. I would definitely recommend this product.

Jesseca Martin
Gives great volume to hair!

Love how this hair fiber mousse gives great volume to my hair smells great as well, don't add any other products when using because I did 1 time and it made my hair sticky and crunchy. Its good used all alone. I love it

Antonette Brown
Nice hold

Mousse has a great hold. Has somewhat of a smell but that’s ok. Good product overall

Have any questions about Four Reasons?

Color Mask Treatments are pigmented deep conditioners, and Color Mask Shampoos are pigmented shampoos.

Color Masks are specially formulated for color-treated hair, as they perfectly
take into account all that colored hair needs: color refresh and deep

Color Masks don't contain harsh chemicals like ammonia. Quite the contrary
actually! They gently cleanse and deeply condition and repair hair, while
depositing color pigments to the hair's surface.

Color Masks are intended to tone hair or maintain your existing hair color. We all know that beautiful hair color can fade and lose its vibrancy within a few washes. That's where Color Masks come in! Use in place of regular shampoo or conditioner whenever your hair color needs to be refreshed. Simple as that!

Yes! All Four Reasons products are 100% vegan and cruelty-free.
We do not test, and we do not have anyone else test Four Reasons products or their ingredients,on animals. In our products, we use raw materials from known European suppliers. According to EU legislation, testing these raw materials on animals has been banned since 2009.

Yes, the grass is actually greener on this side!
By the end of 2020, 99% of our packaging is recyclable when empty, and 35% of the plastic packaging for our retail products were either recycled or bioplastic. Cardboard boxes used in product shipments are also 85% recycled cardboard, the printed reclaimed paper used to fill the transportation boxes is 100% made of recycled materials and the packaging tape is recycled paper. Our shipments may not be the prettiest but it’s not our style to spoil the environment to please the eye – beauty doesn’t come in one shape and size, and this applies to packaging, too!

The safety of our staff, customers, and community is always top of mind. In light of COVID-19, we have taken steps to prevent the spread of germs inside and outside of our facilities. That includes increased cleaning and disinfecting, work from home when possible, and other measures as recommended by World Health Organization (WHO) and Center for Disease Control (CDC).

US orders ship from Missouri, USA.

Fiber Mousse

Fiber Mousse

6.56 FL oz