We typically lose about 50 to 100 strands of hair per day, according to the American Academy of Dermatology Association. That might not amount to much, considering we have roughly 100,000 hairs on our head that regrow regularly. But if you see your scalp starting to peek through, it might be time for an intervention. There are in-office procedures (which cost enough to make you consider shaving your head), but there are plenty of affordable at-home solutions available too — and they're way less intense. Amazon's No. 1 bestselling Bellisso Biotin Shampoo and Conditioner Set is a popular choice, and right now is a great time to try it out — the duo is marked down to just $30.

Amazon

Biotin Thickening Shampoo and Conditioner

$30$40Save $10

With biotin, hydrolyzed keratin, spirulina extract and several other nutrient-rich botanicals, this shampoo and conditioner duo promises to thicken thinning hair.

$30 at Amazon

The formula — great for both men and women — is jam-packed with good-for-your-locks ingredients, like biotin, zinc, collagen, peptides and spirulina extract, all of which work together to give you a fuller head of hair. DHT blockers help prevent loss and thinning. It's safe to use on colored hair. Got curls? Fine hair? Dry? Oily? No problem!

According to nearly 16,000 five-star reviewers, well, it just works. One shopper said it worked so well, she got major compliments. "From the very first time I used this, my hair was incredibly soft, shiny and my roots weren't oily at the end of the day!! I'm so amazed by this stuff," she shared. "Three days into using this, a random stranger told me my hair was so beautiful and shiny. I was completely taken aback since my hair has been dyed and damaged for years."

Another thrilled shopper called it their "holy grail" hair product, before adding, "I have PCOS and deal with mild hair loss and just overall dryness. This stuff is soooo good. I can’t believe how soft and healthy my hair is after one wash."

Even new mamas swear by the stuff. One wrote: "I’m in the midst of some major postpartum hormonal hair loss, which resulted in [a] bald spot. I read reviews for this shampoo/conditioner, and gave it a shot. So glad I did, as just two months later the bald spot had completely grown in! I’m ridiculously thankful for this shampoo and conditioner — just ordered another batch!"

Amazon

Biotin Thickening Shampoo and Conditioner

$30$40Save $10

Thinning hair? This duo may do the trick — nearly 16,000 Amazon shoppers say it's worked for them.

$30 at Amazon

If you have Amazon Prime, you’ll get free shipping, of course. Not yet a member? No problem. You can sign up for your free 30-day trial here. (And by the way, those without Prime still get free shipping on orders of $25 or more.)

The reviews quoted above reflect the most recent versions at the time of publication.

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