KERATHERAPY Keratin-Infused Fiber Hair Thickener Spray, Medium Brown 4 fl oz — Volumizing, Concealing Roots

KERATHERAPY Keratin Infused Perfect Match Fiber Hair Thickener Spray is a lightweight, keratin-enriched spray that instantly adds visible density, root coverage, and natural-looking concealment for thinning areas until your next shampoo.

This medium-brown hair thickener spray combines keratin-building fibers with a quick-dry setting formula to give fine or thinning hair immediate volume and targeted scalp coverage. Designed to integrate with natural hair, the product helps disguise sparse patches and visible roots while maintaining movement and a soft finish. The compact 4 fl. oz. (140 ml) can is travel-friendly and formulated to wash out easily with shampoo.

How will this spray change my daily styling routine?

Use the spray as a finishing step after styling to boost body and mask areas where hair looks thin. It deposits microfibers and keratin to thicken strands visually without feeling heavy, so you can skip complex layering or heavy products. Ideal for quick touch-ups, it works well on the crown, part line, and temples.

• Spray on dry, styled hair for instant density.
• Targets roots, part lines, and thinning patches precisely.
• Maintains natural movement and holds without stiffness.

Is the color match accurate and how long does it last?

The medium brown shade blends with medium brown hair to create seamless coverage when applied lightly and evenly. The fibers adhere to existing hair and scalp for long-lasting concealment that holds through daily activities. Durability lasts until you shampoo, and the formula rinses cleanly without residue.

• Available in multiple shades to find the best match.
• Resists everyday movement, humidity, and light wind.
• Removes easily with your next shampoo wash.

What makes the formula different from other thinning-hair sprays?

This product is infused with keratin-supportive ingredients and Keratherapy's Kerabond™ technology to help fibers cling securely to hair shafts for a natural look. The aerosol delivers a fine, even mist so fibers distribute uniformly without clumping. It’s formulated to be lightweight, preserving style shape and avoiding a crunchy finish.

• Keratin-enriched formula for added strength and elasticity feel.
• Kerabond™ technology helps fibers attach reliably to hair.
• Non-greasy, quick-dry spray keeps hair soft and touchable.

Can I use it with other styling products or hair treatments?

You can layer this thickening spray over most styling products; apply it after you finish styling for best adhesion and visual effect. If you use heavy oils or creams, apply the spray to clean, dry hair for optimal fiber grip. It’s compatible with haircut styling, color-treated hair, and common thermal tools when used as a finishing product.

• Apply after gels, mousses, or heat styling as a finishing step.
• Avoid over-application on heavily oiled sections for best hold.
• Wash out with regular shampoo—no special removers required.

Who is this for: KERATHERAPY Keratin Infused Perfect Match Fiber Hair Thickener Spray in Medium Brown is designed for men and women with fine, flat, or thinning hair who want immediate volume and discreet coverage of roots and sparse areas. It suits anyone seeking a non-permanent, easy-to-use solution that blends with colored hair and fits into a quick morning routine. Choose this spray if you want a travel-ready, keratin-backed product that gives natural-looking density until your next wash.

Ingredients

Hydrofluorocarbon 152a, Butane, Alcohol Denat, Iron Oxide Black CI 774499, Iron Oxide Red CI 77491 and Iron Oxide Yellow CI 77492, VP/VA Copolymer, Aluminum Starch Octenylsuccinate, Propylene Glycol, Hydrolyzed Keratin, Silica, Parfum, Allergens: Amyl Cinnamal, Benzyl Salicylate, Butylphenyl Methylpropional, Linalool, Citronnellol, Alpha-isomethyl Ionone