Marc Anthony Instantly Thick Biotin and Aloe Shampoo for Fine Hair - Hair Thickening Biotin Shampoo for Thick and Full Hair - Volumising & Thickening Biotin Shampoo for Dry, Fine Hair

I buy the Marc Anthony instantly thick hair products because they really do work well on fine hair. Using this brand of shampoo, conditioner and styling cream definitely gives fine hair more body and actually makes it look thicker. Fine hair has a tendency to fall flat even when using hairspray but with this stuff it doesn't and it also holds curls better too. I haven't noticed that it actually thickens hair but it does give the appearance of thicker hair, which I really appreciate.

Honestly the shampoo smells very nice and I love that, if you hair is weak, thin or at times you feel it's just not how naturally it needs to be, this shampoo is the one for you, it really makes it thick and clean and you feel your hair is healthy, before using this shampoo if rolled a comb over my hair I would easily see my scalp but with this one it feels my hair is just full! Amazing and I love it, will certainly stick to this one! Btw am a guy and i felt the difference from the first use.

This product is very good , have been using for for 8 months now. Smells good, makes hair voluminous and smooth. Very good product.

Amazing product - used in conjunction with the conditioner. Instant results. Hair is thick and healthy looking.

Didn't do what it promises in terms of thickening otherwise a decent product.