Hair Fiber Brands Compared: Toppik, Caboki, Febron and More

This page puts six hair fiber brands in one table: Toppik, Caboki, Febron, Boldify, Nanogen and most. Every competitor value is quoted from that brand's own website with the date it was read, and gaps are marked "not published." It is a fact table. It ranks nobody, and most. makes one of the six, so read it with that in mind.

Which hair fiber brands are compared here, and how?

This page compares six hair fiber brands: Toppik, Caboki, Febron, Boldify, Nanogen and most. They are often named together in searches for thinning-hair fibers. Each competitor value is quoted from the brand's own site and dated. Where a site is silent, the cell says so. most. makes one of the six and ranks none.

Ingredient lists were read on September 13, 2026. Other Caboki, Febron, Boldify and Nanogen values were read on October 2, 2026. Toppik's shades, sizes, price and guarantee were read on November 6, 2026. The most. facts come from the live store on November 5, 2026.

Prices are in US dollars before tax and shipping, except Nanogen, which prices in pounds with no exchange rate applied. Price per gram is the published price divided by the published grams. most. has not tested any competitor's product, so this page says nothing about hold or coverage.

What is each brand's fiber made of?

The six brands use two materials as published. Toppik and Nanogen print keratin first. Caboki, Febron and most. print cotton first. Boldify's summary line says "Cotton Fibers," but its full ingredient list starts with Nylon-6/12, then cotton powder. most. is cotton cellulose with mineral pigment and contains no keratin and no wool.

The table below sets out the published facts for all six brands side by side.

Toppik's page shows one price beside three sizes, so no per-gram figure is computed for it.

Which hair fiber brands are keratin and which are cotton?

Toppik and Nanogen are keratin brands, and Caboki, Febron and most. are cotton brands. Boldify's own page carries two statements: a summary line reading "Cotton Fibers" and a full list that begins with Nylon-6/12. Keratin fibers in this category are made from processed sheep wool. most. is cotton cellulose and contains no keratin.

Neither Toppik nor Nanogen names the source of its keratin on the pages read. Toppik describes it as "the same protein that makes up human hair." The sheep wool origin is a category fact, not a statement either brand makes. Material matters most to a buyer who reacts to wool or avoids animal-derived ingredients. most. is vegan and not tested on animals.

Febron says its fibers are "both vegan and cruelty-free." Caboki says "Our products do not contain any ingredients derived from animals." Ammonium chloride appears on the Toppik and Boldify lists and on no other list here, and phenoxyethanol appears on the same two. The most. list contains neither. See cotton vs keratin hair fibers.

How do hair fiber prices compare per gram?

At the single-bottle price, most. costs $1.60 per gram: $39.95 for 25 g. Caboki and Febron are $1.17 at 30 g, Boldify $1.25 at 12 g and $0.57 at 56 g, and Nanogen £1.33 at 15 g and £1.00 at 30 g. most. multi-packs fall to $1.00, $0.80 and $0.72.

The most. 2-Pack is 50 g for $49.90, the 3-Pack 75 g for $59.85 and the 4-Pack 100 g for $71.80. On subscription, most. is $1.20, $0.80, $0.64 and $0.56 per gram across the four packs. Computed from published discounts, Caboki is $0.99 (30 g), Febron about $1.05 (30 g), Boldify $0.51 (56 g) and Nanogen £0.90 (30 g).

These figures leave out shipping. US one-time most. orders pay $4.95 standard shipping below $50 and ship free at $50 or more, so the 1 bottle and the 2-Pack pay $4.95 and the 3-Pack and 4-Pack ship free. Price per gram is not price per use: a 25 g most. bottle is about 30 days of daily use on a typical thinning area. See what hair fibers actually cost per use.

How do the hair fiber guarantees compare?

All six publish a 30-day money-back guarantee, and the terms differ. most. refunds a first order within 30 days of delivery, sends a prepaid return label and refunds used or empty bottles in full. The other five state conditions in their own words, and silence on used bottles or return postage is marked not published.

Caboki's policy does not state who pays return postage or whether opened bottles qualify. Febron says "One opened unit per product may qualify" and puts return shipping on the customer unless stated otherwise.

Boldify covers "a single bottle of each product." Nanogen counts 30 days from purchase and does not state whether used jars qualify. Toppik's page gives no terms beyond its banner. most. also offers free shade swaps with no return needed. Full terms are on the most. guarantee page.

Which hair fiber brands offer the most shades?

Caboki and Boldify list 14 shades each, Febron 11, Nanogen 10 and Toppik 9. most. offers the fewest, 4: Black, Dark Brown, Light Brown and Blonde. most. makes no grey, white, auburn or red shade. If your hair is grey, white or red, the other five brands list shades that most. does not make.

A free most. shade swap fixes a wrong pick among the four shades. It does not create a fifth. Match the shade to the root color in daylight. The hair fiber shade guide explains which of the four fits which hair, and hair fibers for grey hair covers the case most. does not serve.

How should you choose between hair fiber brands?

Choose on the criteria that matter for your hair, not on a ranking. Check five things: fiber material, whether the shades cover your root color, price per gram at the size you will buy, what the guarantee covers on a used bottle, and the subscription terms. most. is cotton, has four shades and will not make hair grow back.

• Wool or animal-derived ingredients matter: check the first ingredient. Two of the six list keratin first.
• Your hair is grey, white or red: most. makes no shade for it.
• Lowest price per gram: compare at the size you would buy. Published figures run from $0.57 to $1.60 in dollars.
• You want to try a bottle: read what each guarantee says about used bottles and who pays the return.
• You plan to subscribe: check the discount, the interval and the cancellation terms.

Fibers need existing hair to cling to. On bare skin they do nothing, and most. is cosmetic only. If a cotton fiber in four shades with a 30-day guarantee fits, see most. hair fibers. For the longer checklist, read how to choose hair fibers for thinning hair.

Where to read next

• most. vs Toppik
• most. vs Caboki
• most. vs Febron
• most. vs Boldify
• most. vs Nanogen
• Cotton hair fiber brands compared
• Hair fiber ingredient lists compared
• How to choose hair fibers for thinning hair