Editor's Tip Editor's Tip

For maximum results, follow up with Billy Jealousy’s Cashmere Coat conditioner.

Billy Jealousy Fuzzy Logic Hair Strengthening Shampoo

$22.00 Ships Free
8 fl. oz. / 236 ml

Availability: In stock


Birchbox Breakdown

Few phrases strike terror in the hearts of men quite like “this one: "male-pattern baldness."” Quell your fears with this award-winning shampoo, which fights hair loss from the root. Menthyl lactate and peppermint oil help block DHT formation (the main culprit of balding), while dissolving sebum and other scalp buildup. Meanwhile, a coconut-derived conditioner and Vitamin B5 leave your stands looking mighty-fine.

How to Use

Apply to wet hair and massage mixture into a rich lather. Rinse well and repeat. The formula is highly concentrated, so a little goes a long way.

Water, Glyceryl Stearate, Stearic Acid, PEG/PPG-14-4 Dimethicone, PEG-7 Glyceryl Cocoate, Cocamide DIPA, C12-15 Alkyl Benzoate, Cetearyl Alcohol, Polysorbate 60, Behentrimonium Methosulfate, Glycerth-7, Cetyl Alcohol, Beeswax, Glycol Stearate, Polysorbate 20, Carbomer, Hydroxyethyl Cellulose, Xanthan Gum, Beta Carotene, Citrus Grandis (Grapefruit) Peel Oil, Citrus Aurantium Dulcis (Orange) Peel Oil, Citrus Aurantium Bergamia (Bergamot) Fruit Oil, Mentha Piperita (Peppermint) Oil, Citrus Reticulata (Tangerine) Peel Oil, Phenoxyethanol, Caprylyl Glycol.

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Most Helpful Customer Reviews

Hey Billy

I knew a guy named Billy once. Not William, just straight up Billy. His parents smoked a lot of pot.
This shampoo is cool but also reminded me of Billy, who is dead but was a cool guy. 4 stars for muthafuckin Billy.

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Smells and feels great

I'm liking the smell of this shampoo and it leaves my scalp and hair feeling great. Still need more time to see if it strengthens the hair and helps it grow but so far so good.

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Shower Staple

I have add this product to my essential list. It leave hair clean and full. I can't comment on the product's claim to "fight hair loss from the root" nor whether it changes the likelihood of "male pattern baldness", but it does leave hair feeling clean and full. I use this product in an alternating regime with one other shampoo (also available via Birchbox). Overall, top rate shampoo I have tried and now include in my routine "essential" products order. The only down side is that it is not very thick out of the bottle, so you end up pouring out more than is actually necessary.

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Buzz cut

I will preface that I do have buzzed hair, but am sent shampoos from time to time. If they need arose, I would use this product regularly. The combination of lather and fragrance are a great mix, with lasting effects.

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Decent Shampoo

While I can't say if this has done anything to strengthen my hair, I do like the scent, which is energizing, and its wash-ability.

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