most. vs Nanogen: Material, Ingredients, Shades, Price per Gram, Guarantee

most. and Nanogen both make hair building fibers that cling to existing hair to make thinning areas look denser. most. is cotton cellulose in 4 shades. Nanogen is keratin in 10 shades, so Nanogen covers more hair colors, including grey, white and auburn, and most. does not pretend otherwise. most. publishes a refund on used or empty bottles, with return shipping paid.

What is the difference between most. and Nanogen hair fibers?

most. hair fibers are made of cotton cellulose; Nanogen hair fibres are made of keratin. Nanogen makes 10 shades to the 4 most. makes, sells 15 g and 30 g jars priced in pounds, delivers within the UK, and dates its history to 1999. most. sells a 25 g bottle priced in dollars and ships to the United States.

The table lists each fact as each brand publishes it. Nanogen prices are in pounds, marked "Taxes included", and no exchange rate is applied. Unmarked most. facts come from the most. facts page. most. publishes this page and makes one of the two products, so read it with that in mind.

What are most. and Nanogen hair fibers made of?

most. hair fibers are made of cotton cellulose, a plant fiber. Nanogen hair fibres are made of keratin: the ingredient list starts with "Keratin" and the site carries the line "100% Keratin Fibres". The Nanogen pages fetched do not name the source of the keratin. In the hair fiber category, keratin fibers are made from processed sheep wool.

The most. list is cotton cellulose, cellulose gum, sodium chloride and four mineral pigments listed by CI number. The most. ingredients page also notes that one further label entry is being confirmed against the manufacturer specification sheet. Nanogen prints "Keratin, [+/- CI 16035 (Red 40), CI 19140 (Yellow 5), CI 42090 (Blue 1)]", where "+/-" is the label convention for "may contain".

For a buyer who reacts to wool or avoids animal derived ingredients, material is the fact that decides it. most. is vegan and not tested on animals. Nanogen states that "no finished Nanogen products are tested on animals", and the pages fetched do not describe its fibres as vegan.

How many shades do most. and Nanogen make?

Nanogen makes 10 shades of hair fibres and most. makes 4. Nanogen lists Grey, White, Black, Dark Brown, Medium Brown, Light Brown, Auburn, Cinnamon, Dark Blonde and Light Blonde. most. makes Black, Dark Brown, Light Brown and Blonde. Nanogen covers grey, white, auburn, cinnamon and medium brown, which most. does not make, and splits blonde into two.

If your hair is grey, white or red, Nanogen has a shade for it and most. does not. A free shade swap from most. fixes a wrong pick among its four shades; it does not create a fifth. Nanogen offers a colour matching service from photos of your hair. The most. shade guide explains which of the four fits which hair.

Which costs less per gram, most. or Nanogen?

Per gram, Nanogen's 30 g jar costs £1.00 and its 15 g jar £1.33. One most. bottle costs $1.60 a gram, falling to $0.72 a gram on a four bottle order. The brands price in different currencies for different countries, so the figures stand as published, and the comparison below depends on the exchange rate on the day you buy.

• most., one bottle: $39.95 ÷ 25 g = $1.598, about $1.60 a gram.
• most., four bottles: $71.80 ÷ 100 g = $0.718, about $0.72 a gram.
• most., one bottle on subscription: $29.95 ÷ 25 g = $1.198, about $1.20 a gram.
• Nanogen, 15 g: £19.95 ÷ 15 g = £1.33 a gram.
• Nanogen, 30 g: £29.95 ÷ 30 g = £0.998, about £1.00 a gram.
• Nanogen, 30 g on subscription: £26.96 ÷ 30 g = £0.899, about £0.90 a gram.

One most. bottle at $1.60 a gram costs more per gram than a Nanogen 30 g jar unless a pound buys more than $1.60. A four bottle most. order at $0.72 a gram costs less per gram than the 30 g jar at any rate above $0.72 to the pound. Usage estimates differ too: Nanogen states "the 15g jar is approximately one month supply"; most. states 25 g is about 30 days of daily use. See the cost per use page.

How do the most. and Nanogen subscriptions compare?

most. Subscribe and Save is 20% or more off: $29.95 for one bottle, $39.90 for two, $47.85 for three and $55.80 for four, delivered every 1, 2 or 3 months, cancel any time. Nanogen's subscription gives "10% off every subscription order", delivered every 4, 8 or 12 weeks, and states: "You can pause, skip or cancel at any time."

Nanogen states that subscription orders below its £25 free delivery threshold pay "our standard delivery fee of £3.95 each time", so a 15 g jar at £17.96 pays it. most. ships free on US subscriptions from a $47 subscription subtotal: one bottle at $29.95 and two bottles at $39.90 sit below that line, and three or four bottles sit above it.

What does each money-back guarantee cover?

Both brands publish a 30-day money-back guarantee. most. counts the 30 days from delivery, sends a prepaid return label, and refunds used or empty bottles in full on a first order. Nanogen counts 30 days from purchase on orders from nanogen.com, does not state whether used jars qualify, and refunds return postage when goods "were incorrectly supplied".

Nanogen's refund policy reads: "If you're unhappy with your purchase, we simply ask that you contact us at hello@nanogen.com within 30-days of your purchase." It adds that a purchase from a stockist follows the stockist's policy, and: "We reserve the right to amend or cancel this promotional returns policy at any time." Its FAQ says: "If the goods are being returned because they were incorrectly supplied, then we will also refund the return postage costs."

This is the criterion where most. publishes more terms: who pays for the return, and whether an opened bottle counts. Fibers can only be judged on your own hair, so the bottle is open before you know. Full terms are on the guarantee and free shade swap page.

Can you buy Nanogen or most. in the United States?

most. ships to the United States, with free US shipping on one-time orders of $50 or more and on subscriptions from a $47 subscription subtotal. Nanogen's FAQ states: "Nanogen.com does not ship outside of the UK, however, we have retail partners in a number of countries." Outside the UK, Nanogen is sold through those partners, and Nanogen states that a stockist's own returns policy then applies.

Within the UK, Nanogen delivery is "FREE when you spend over £25 or £3.95 for all orders below this value". most. sells online at mosthairfibers.com and ships to the United States and internationally.

Who should choose Nanogen, and who should choose most.?

Choose Nanogen if your hair is grey, white, red or medium brown, if you live in the UK, if you want a 15 g or 30 g size, or if you want a brand with a history back to 1999. Choose most. for a cotton cellulose fiber, a refund on used bottles with the return paid, or US delivery.

Neither is a ranking: pick on the criterion that matters for your hair.

Where to read next

All six brands side by side: hair fiber brands compared.

• most. facts: product, ingredients, sizes, prices and guarantee
• Hair fiber ingredient lists compared
• Hair fiber shade guide
• The most. guarantee and free shade swap
• most. vs Toppik
• most. hair fibers product page