Hair Building Fibers – Keratin Hair Fiber Concealer, 12g & 25g

Hair building fibers are a cosmetic concealer: tiny colored fibers that cling to the hair you already have, so a thin part, a wide part line or a see-through crown looks fuller. They sit on top of your hair and are temporary. They wash out with shampoo.

Shades and sizes

• 25g jar in 10 shades: black, dark brown, medium brown, light brown, auburn, golden blonde, golden medium blonde, light blonde, grey and white
• 12g jar in white
• Applicator: a spray applicator that fits the jar, sold separately (choose "Applicator")
• Sets: "1style" is one 25g jar of each of 9 shades (light blonde, medium brown, black, dark brown, golden blonde, grey, light brown, white and golden medium blonde); "2style" is two of each. The supplier lists an applicator with the sets; please contact us to confirm before ordering.

Choose the shade that matches your roots. If you are between two shades, the darker one usually blends better.

How to use

1. Start with clean, completely dry hair. Style it first.
2. Part your hair where you normally wear it.
3. Hold the jar a few inches above the area, tilted at about 45 degrees, and shake on a light layer where scalp shows.
4. Pat the fibers in gently with your fingertips. Don't comb through afterwards.
5. Add a little more only where scalp still shows, then set with a light mist of hairspray.

Full guide: How to Use Hair Fibers (step by step, for a part, hairline or crown).

Tips

• Check the result in daylight; indoor light hides patchy spots.
• Go lightest at the hairline so it doesn't look drawn on.
• Let hairspray dry before you touch your hair.
• Keep fibers away from your eyes. Don't use them on broken or irritated skin.

Product details

• Type: hair building fibers (cosmetic hair concealer), listed by the supplier as keratin fibers
• Net weight: 25g or 12g per jar
• Shelf life (per the supplier): 3 years
• Storage: store in a cool, dry place with the lid closed tightly

Shipping and returns

• Free standard shipping to US addresses (we ship within the United States only).
• Orders are typically processed within 1–3 business days; most orders then arrive within 7–10 business days. Delivery times are estimates, not guarantees. See our shipping policy.
• 30-day returns: you can request a return within 30 days of delivery. Because this is a cosmetic product, it can only be returned unopened in its original sealed packaging; damaged, defective or wrong items are replaced or refunded. See our return & refund policy.
• Use code WELCOME15 for 15% off (one use per customer).