Hair fiber ingredient lists compared: Toppik, Caboki, Febron and more

This page transcribes the published ingredient list of six hair building fiber brands: Toppik, Caboki, Febron, Boldify, Nanogen and most. Each list was fetched from the brand's own website on September 13, 2026 and is quoted as printed, with its URL. most. sells one of the six. The page describes the lists. It does not rank them.

What does this page compare, and what does it not?

This page compares the published ingredient lists of Toppik, Caboki, Febron, Boldify, Nanogen and most., as each brand printed them on its own site on September 13, 2026. It does not compare hold, coverage, price or shade range, and it does not rank the brands. most. makes one of these products, so the page quotes and does not judge.

Every list below was fetched during writing from a product page, ingredients page or FAQ on the brand's own domain. Nothing was filled in from memory, retailers or third-party databases. Where a brand prints two different statements on its own site, both are quoted.

Why most. does not rank brands is set out on the Toppik alternative buyer's guide: a ranking published by a seller is marketing. A transcription with sources and dates can be checked. Formulas change, so the dates are part of the data.

What is the first ingredient in each brand's hair fibers?

The first ingredient printed on each list is: Toppik, "Keratin"; Caboki, "Gossypium Herbaceum (Levant cotton) fiber"; Febron, "Cotton (Gossypium herbaceum)"; Boldify, "Nylon-6/12"; Nanogen, "Keratin"; most., cotton cellulose. The first entry is the fiber itself, the material that sits on the hair. Two brands list keratin first, three list cotton first, and one lists a nylon first with cotton second.

Three category facts help read those words. Keratin hair fibers are made from processed sheep wool. Gossypium herbaceum is the botanical name of a cotton species, so Caboki, Febron and most. all list a plant cellulose as the fiber. Nylon is a synthetic polymer; some brands use nylon or rayon fibers or blends.

Boldify's product page carries two statements. A summary line begins "Cotton Fibers". The full list on the same page, behind a "Full Ingredients" link, begins "Nylon-6/12, Gossypium Herbaceum (Cotton) Powder". Both are quoted because they name a different first material. The longer guide to fiber materials is at what hair building fibers are made of.

Which binders and additives appear in each list?

Ammonium chloride appears on two of the six lists, Toppik and Boldify. Sodium chloride appears on three, Febron, Boldify and most. Cellulose gum appears only on the most. list, where it is the binder. Silica appears on Toppik's list. Dimethicone and Aluminum Hydroxide appear on Boldify's. Caboki and Nanogen list nothing beyond the fiber and the colorants.

The lists themselves do not say what each entry does. Where a brand explains an entry on its own site, that explanation is quoted. Febron's page on what hair fibers are made of says salt "acts as a natural binding agent" (febron.com, fetched September 13, 2026). most. states that cellulose gum is the binder and sodium chloride helps the powder flow. Toppik's and Boldify's pages do not state the function of ammonium chloride; as a category fact, it is a common binder in keratin hair fibers.

Colorants are printed three ways. Toppik and Nanogen list them by CI number inside a "[+/-" bracket, the label convention for "may contain". Caboki prints "mineral colorants (Iron oxide)" and Febron "Mineral based colorant", with no CI numbers. Boldify prints "Colorants vary by shade." most. lists four CI numbers on one formula across four shades.

What do the ingredient lists say about preservatives and fragrance?

Phenoxyethanol appears on the Toppik and Boldify lists, and Chlorphenesin on Toppik's. No other fetched list names a preservative. No list from any of the six brands names fragrance or parfum. Febron's FAQ states "no preservatives"; Caboki's ingredients page states its products contain "none of the synthetic dyes, fillers, preservatives"; the most. label lists no preservative of any kind.

Absence from a list is all a list can show. Nanogen adds a note under its list: "Our hair fibre dyes are all cosmetic approved edible dyes - the same as those used in the food industry" (nanogen.com, fetched September 13, 2026, spelling as printed).

Which brands publish a full list on their own site?

All six brands publish an ingredient statement on their own site. Toppik, Febron, Boldify, Nanogen and most. publish a comma-separated list on the product page. Caboki publishes a two-ingredient description in prose on its ingredients page and a two-entry line on its product page. Whether each counts as full is for the reader; this page reports what was found.

Caboki's two pages use different wording for the same two components, so both are quoted. Boldify's summary line and full list sit on one page and name a different first material; both are quoted, neither is preferred.

What is in most. hair fibers?

most. hair fibers contain seven listed ingredients: cotton cellulose, cellulose gum, sodium chloride, CI 77491 (iron oxide red), CI 77492 (iron oxide yellow), CI 77499 (iron oxide black) and CI 77891 (titanium dioxide). Cotton cellulose is the fiber, cellulose gum is the binder, sodium chloride helps the powder flow, and the four CI entries are mineral pigments.

most. makes one formula in four shades: Black, Dark Brown, Light Brown and Blonde. The list contains no keratin, no wool, no ammonium chloride, no fragrance, no parabens, no phenoxyethanol and no preservative of any kind. most. is vegan and not tested on animals. No outside body has verified this; the list is published so anyone can check it.

The same rule applies to most. as to the other five brands: the label is the source and the website transcribes it. The label transcription, with INCI names, is on the most. ingredients page. Product facts sit on the most. fact sheet, and the two-brand comparison at most. vs Toppik.

How should you read these lists for yourself?

Read a hair fiber ingredient list in four places: the first entry, which is the fiber; the binder, usually a chloride salt or a gum; any preservative, which on these lists is phenoxyethanol or chlorphenesin; and any fragrance or parfum entry. Then check the label on the bottle in your hand. That label beats any website, including this one.

1. First entry. Keratin means sheep wool. Cotton, cellulose or Gossypium herbaceum means plant cellulose. Nylon means a synthetic polymer.
2. Binder. Look for ammonium chloride, sodium chloride or cellulose gum. If none is printed, the list does not say what holds the powder together.
3. Preservative. Look for phenoxyethanol, chlorphenesin or parabens. If none is printed, the list does not name one.
4. Fragrance. Look for fragrance or parfum. None of the six lists fetched prints either word.
5. The label. Websites lag labels. Compare the bottle you receive with the list you read before ordering. If they differ, the label is current.

To run the same check on most., the four shades and the label list are on the most. hair fibers product page. The first order carries a 30-day money-back guarantee, and most. pays the return label, so a wrong bottle costs time, not money.