Spencer Forrest Hair Products

If you've researched hair building fibers or thinning-hair products, you may have come across the name Spencer Forrest, Inc. — but the company isn't as widely known as the brand it created. Spencer Forrest is the company behind hair fiber products for hair loss . This guide explains who Spencer Forrest is, what they make, their history, and who owns them today.

Who is Spencer Forrest, Inc.?

Spencer Forrest, Inc. is a Los Angeles–based hair-care company best known as the manufacturer of Hair Building Fibers — widely described as the world's leading cosmetic hair thickening product. More than just making a product, Spencer Forrest is often credited with creating the entire category of cosmetic solutions for thinning hair.

What products does Spencer Forrest make?

Spencer Forrest offers several hairloss product families:

• Hair Fibers — its flagship line: hair building fibers, plus related products like a spray applicator, hairline optimizer, FiberHold spray.
• Scalp concealer lotion — COUVRé
• Colored hair thickener spray — Fullmore
• laser light therapy device for hair - X5 Hair Laser

Who owns Spencer Forrest now? The Church & Dwight acquisition

Church & Dwight is a large American consumer-products corporation behind well-known household and personal-care brands such as Arm & Hammer, OxiClean, and Batiste. So today, Toppik and XFusion are owned by a major consumer-goods conglomerate, not the founder-led startup that originally created them. This is worth knowing if you're researching the brand: you're looking at products under a large corporate umbrella.

What is Spencer Forrest best known for?

Without question, Hair Building Fibers are Spencer Forrest's defining product. The fibers cling to existing hair strands through static charge to make thinning areas look fuller.

Spencer Forrest's XFusion line brings the same fiber formula to the salon and professional market.

Researching hair fiber alternatives?

If you found this page while comparing hair fiber options, it's worth knowing how Spencer Forrest's products fit into the wider market. Toppik and XFusion are keratin-based fibers colored with water-soluble dyes — an approach with a long track record, but also with a few known trade-offs: keratin is animal-derived (not vegan), water-soluble dyes can leach and sometimes cause a greenish tinge in heavy sweat, and the fibers come in 9 shades.

There are plant-based alternatives that take a different approach. Fibers made from cotton and colored with mineral (iron-oxide) pigments — such as Caboki — are vegan, use colorfast pigments that resist the green-tinge issue, and come in a wider shade range, with simpler formulas that suit sensitive scalps. Neither approach is universally "better"; it depends on your priorities. If you're weighing options, the honest way to compare any two fibers is to look at the actual ingredient labels and run a quick water test (shake a little into clear water to check colorfastness) and burn test (to confirm the material).

The bottom line

Spencer Forrest, Inc. is the Los Angeles company that makes Hair Building Fibers and other products like Toppik, Xfusion,  COUVRé, Fullmore, and the X5 Hair Laser. Its brands now sit within a large corporation.

Frequently asked questions

What is Spencer Forrest, Inc.? Spencer Forrest is a Los Angeles–based hair-care company best known as the manufacturer of Hair Building Fibers. It also makes the XFusion, COUVRé, Fullmore, and X5 Hair Laser product lines.

Who owns Toppik and Spencer Forrest? Church & Dwight — the consumer-products company behind brands like Arm & Hammer and OxiClean — acquired Spencer Forrest, Inc., the maker of Toppik, in January 2016. So Toppik and XFusion are now owned by Church & Dwight.

Is Spencer Forrest the same as Toppik? Spencer Forrest is the company; Toppik is its flagship brand. The company also makes XFusion (its salon line) and other products, but Toppik is what it's best known for.

Does Spencer Forrest make XFusion? Yes. Spencer Forrest manufactures XFusion, its professional/salon brand of hair fibers, which is why XFusion and Toppik share the same keratin formula and characteristics.

What are the alternatives to Spencer Forrest's Toppik? Toppik is keratin-based; alternatives include plant-based fibers made from cotton and colored with mineral pigments (such as Caboki), which are vegan, more colorfast, and come in more shades. The best choice depends on your priorities — compare ingredient labels and test for colorfastness.