Strand Builder Natural Keratin Hair Building Fibers


Strand Builder rebuilds your hair with natural keratin fibers that are designed to statically cling to existing hair, building each strand for thicker-looking hair.

Just sprinkle on and watch as your receding hairline, thinning areas or balding patches disappear, leaving you with thicker-looking natural hair.

Strand Builder is specifically designed to be undetectable and stay in place until you wash them out.


Dry Hair. Shake fibers over thinning area. Lightly pat down hair to set fibers in place. Use hair spray to lock fibers in place. Close top and store away from moisture when not in use.



Stays In
Until you Shower
100% Organic
Keratin Fibers
Appearing Hair



For topical use only. If irritation or rash appears discontinue use. Avoid contact with eyes. Avoid inhaling.


Plant Resinous Fiber (Plant Cellulose, Plant Cellulose Gum), Keratin Derivative,
Anti-static Agent, Ammonium Bicarbonate, May contain +/- Yellow 6 (CI 15985), Blue 1 (CI 42090), Acid Red 27 (CI 16185).


Ask a Question
  • Does this product help regrow hair as well?

    This product uses keratin fibers to give your hair more density. It does not stimulate hair growth. If hair growth is your goal then our EXT line of products and/or a laser device can help you achieve this.

  • what size is this container? what amount does it hold?

    The Strand Builder contains 30g or 1.058oz of fibers.

    The container is 50mm diameter X 115mm tall (2" diameter x 4.5" tall)

  • Will your products work for someone whose hair loss is due to the use of medications?

    This product is not a product that will stop the loss of hair, but a product that will help those with hair loss conceal and mask the look of thinning hair.  It gives the appearance of thicker, fuller hair.  It will work better for someone with diffused thinning (thinning all over) more than someone with no hair and a complete bald spot.  This product requires some hair in the applied area to cling to for the best effect.

    If you are looking for a product that will stop hair loss or regrowth, check out the EXT® Hair Regrowth At Home Treatment Kit for Men and Women

Customer Reviews

Based on 6 reviews
Jose Pasihuan (Franklin Park, US)

Good product

Karen Williams (Los Angeles, US)
Strand builder

I love this product because it goes into your hair and looks natural. It doesn't move around like most of the things I've been using where it gets on your face falls down on your cheeks. I would recommend this highly the only dissatisfaction I have is $10 for a shipping for a little little bottle that comes other than that I give it an A+

Jesse Falgoust (Thibodaux, US)
It works great

The best product ever used


Strand Builder Natural Keratin Hair Building Fibers

Ann Bridges (Sanger, US)

Has packaging changed?? I have always used Dark Brown and the ones I just received isn't as dark and the fibers seem to be finer, more of a dust.

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