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

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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So Fresh and Clean!

I love the smell of this product. Minty, but not overwhelming. You can definitely feel the oils going to work on your scalp and it leaves this pleasantly tingly feeling. Combined with the conditioner, my hair has been looking great lately!

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Liked it

I would buy this again, but I really think the Billy Jealousy packaging / logo is ugly in my opinion. Loved the scent and felt pretty good. Did not notice a difference with my thinning hair but I'm not expecting miracles.

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Hair strengthening shampoo

Very nice smell. Hair stylist definitely liked the product and results for my hair.

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It's ok

I gave this to my dad, who's balding and he loved it. I myself, with a full head of hair, didn't really like it. I did like the peppermint scent but it was very subtle and I prefer to really smell the peppermint in my products, helps wakes me up. But this product was subtle with scent and I felt I like I had to wash twice to get hair really clean and it felt a little greasy after washing. I wouldn't buy it again due to so many better options for hair care. But, if you're losing your hair, my father would recommend it because he noted he could tell a distinct difference in the thickness of his hair.

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