If you are new to hair fibers, you may wonder whether brushing will undo the coverage you just applied. The good news is, hair fibers are brushable. SureThik hair fibers are precision-cut and micro-sized, so they disperse evenly with no clumping and brush through easily.

Here we will cover how to brush and style your hair with fibers in, what makes fibers come off, and which tools to use.

Do hair fibers come off when you brush them?

No, hair fibers do not come off when you brush them gently, but hard or repeated brushing will knock some loose.

Three things cause fallout:

• Too much product. A heavy application of hair fibers leaves loose fibers sitting on top with nothing to hold onto.
• Damp hair. Hair fibers cling by static, and static needs dry hair. Damp hair can cause hair fibers to clump.
• Gel. Gel interferes with adhesion, so fibers sit loose instead of gripping. Add styling products after applying hair fibers.

For better hold, you can also finish with a holding spray. Unlike regular hairspray, which tends to contain alcohol, SureThik’s Hair Fiber Holding Spray is water-based. This allows it to absorb into our real keratin fibers and dry slowly enough to lock the fibers in place while you brush and style. It also sets to a natural shine rather than a dry, powdery finish, so your hair looks healthy for the rest of the day. (Learn more in our piece about hair fiber spray.)

Should I brush my hair before or after applying hair fibers?

Brush both before and after you apply your hair fibers.

Before, brush to remove tangles and set your hair roughly into the style you want. Fibers should go where your hair actually sits, not where it sits after you restyle it.

After you’ve applied hair fibers, one light brush blends the fibers and evens out the coverage. Anything more than that works against you.

Which brush or comb should I use with hair fibers?

Use a soft-bristle brush or a wide-tooth comb after applying hair fibers, and keep the passes light.

Stiff bristles and fine-tooth combs drag through the hair and pull fibers with them. Soft bristles glide over the top and blend without lifting.

Pressing a brush hard against the scalp lifts fibers off at the root instead of blending them along the hair. Let the bristles travel through the hair and stay off the skin.

If your comb or brush does drag fibers out of place, touch up the spot with a small amount of additional fibers rather than reworking the area. A light application holds better than a heavy one. You should also choose a quality, lightweight keratin fiber for the best hold. SureThik’s keratin fibers are precision-cut and micro-sized for the best grip. And our Hairline Applicator Comb can help with application by placing fibers right where you need them.

How do you style hair with fibers in?

To style hair with fibers in, apply them to dry hair and set with Hair Fiber Holding Spray.

1. Start with dry, styled hair. Get your hair roughly where you want it before the fibers go on.
2. Apply in light passes. Build coverage where the scalp shows rather than dumping product in one spot.
3. Blend with a soft brush or comb. One or two light passes are enough.
4. Finish with Holding Spray and optional styling products. Style within 15 seconds, then leave it alone. Once your hair fibers are set with an alcohol-free holding spray, you can apply a gel, foam, or styling paste to enhance your overall hairstyle.

How do you brush fibers at the hairline?

When using a brush to blend hair fibers at the hairline, brush the hairline forward with short, light strokes to soften the front edge.

A hard line at the front is what makes fibers obvious. Fibers at the hairline should fade out rather than stop, and a few forward passes break up the edge and make it look more natural.

You should also use less product here than anywhere else. The hairline shows the most and needs the least.

Does how you brush hair fibers differ for long and short hair?

Yes, you should brush your hair differently after applying hair fibers depending on whether you have long or short hair:

• Short hair: Brush gently, giving one light pass over the hair to settle the fibers. There is no length for the brush to travel through, so there is a smaller chance of dragging fibers out.
• Long hair: Brush the lengths first, then smooth the top with a short, light pass. Fibers usually sit at the part, crown, or hairline, and a brush pulled from root to tip goes straight through them and could cause disruption.

Texture matters as much as length. Coarse and wavy hair gives fibers more surface to grip, so it holds better and takes brushing well. Fine, straight hair gives them less to hold onto, so keep the passes lighter. 

What should I do if brushing leaves a gap in my hair fibers? 

If brushing leaves a gap, touch up the spot rather than reapplying to the whole area.

Apply a small amount of fibers onto the thin patch, pat it in with your palm, then give it one light pass with the brush to blend.

Reapplying across the whole area is what leads to buildup, which can make coverage look flat.

Can you brush hair fibers the next day?

Yes, you can brush hair fibers the next day and touch them up rather than starting over.

Fibers mostly stay put overnight. A light brush in the morning settles anything that moved, and a small touch-up on the thinnest spots brings the coverage back.

A fresh application on clean hair always looks best, so treat day two as a shortcut rather than the routine. Learn more in our piece on how long hair fibers last.

FAQs

Do hair fibers clump when you brush them?

No, SureThik hair fibers do not clump when you brush them. They are precision-cut and micro-sized, so they disperse evenly rather than gathering into clumps.

Can you brush hair fibers into a part?

Yes, you can brush hair fibers into a part. Set the part before you apply, then use a light pass afterward to tidy the line.

Do hair fibers get stuck in your brush? 

Some fibers transfer to the bristles, especially on the first pass. They rinse off under warm water with a little soap. Fibers do not stain a brush.