California Naturals Re:GRO Anti-Thinning Shampoo, 16.5 fl oz
California Naturals Re:GRO Anti-Thinning Shampoo, 16.5 fl oz
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California Naturals

California Naturals Re:GRO Anti-Thinning Shampoo, 16.5 fl oz

Key item features

  • Anti-thinning shampoo strengthens strands to help reduce breakage and nourish scalp to help reduce flakes, providing essential nutrients for scalp health.
  • Zinc supports scalp health by helping to reduce flakes and promote a healthy scalp.
  • Caffeine stimulates the scalp, encouraging healthy hair growth and reducing hair thinning.
  • Biotin (Vitamin B7) strengthens hair strands, reducing breakage and helps promote growth.
  • Made with 99% Naturally Derived, clean, and simple ingredients.
  • Anti-thinning hair shampoo made for daily gentle scalp and hair care.
  • Sulfate free, paraben free, phthalate free, silicone free, gluten free, vegan and cruelty free shampoo
  • Leaping Bunny Certified
  • Safe for color-treated hair
  • 100% Recycled bottle
  • Woman-founded and led
Current price is $9.9760.4 ¢/fl oz
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  • Free 90-day returns

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Customer ratings & reviews

4.3 out of 5 stars
stars
99 ratings72 reviews
How item rating is calculated
  1. 5 stars56% (55)
  2. 4 stars29% (29)
  3. 3 stars6% (6)
  4. 2 stars6% (6)
  5. 1 star3% (3)

Reviews summary

Pros

  • : Produces a thick, abundant lather when applied.
  • : Contains non-toxic and clean components.
  • : Has a gentle, plant-based aroma.
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Showing 1-3 of 72 reviews

Dec 3, 2025
Megs04
5 out of 5 stars review

Say yes!!

I'm super cautious about ingredients - and this shampoo is a gem. It's clean, over 99% naturally derived, and free from harsh chemicals. THIS shampoo doesn't dry out your hair, but it must have something to stimulate the hair follicles because after a few days I really felt like it was working.

Review from California Naturals
Helpful?274NAKEX43L616926861518
Dec 19, 2025
Lex
5 out of 5 stars review

Amazing!

I received the Re:GRO Anti-Thinning Shampoo for free through the BzzAgent program. I enjoyed getting to try this shampoo as I wanted to see if it would truly do what it said it would. I've noticed over the last few weeks of trying this shampoo that my scalp feels much better, especially during the cold winter months, my hair doesn't break as easily, and hair shedding has reduced. The scent is also a plus! I would definitely recommend this product to anyone looking for a clean, sulfate-free daily shampoo that supports scalp health.

Review from California Naturals
Helpful?274NAKEX43L616926861518
Jun 9, 2026
Jac
5 out of 5 stars review

Excellent shampoo

This is probably one of the best shampoos I've used in a while. The scent isn't too overwhelming. The only con is that the instructions require you to leave the shampoo on for 1-2 minutes prior to washing off. I used the product as instructed. One thing I noticed is that this shampoo doesn't dry out my hair or make it rough like other shampoos do. It doesn't strip my hair and feels clean at the same time. One time I even forgot to put conditioner on afterward and my hair was still smooth. I don't usually get this type of result with other shampoos. After using this for a week I can't say if it helps with hair regrowth but it definitely made my hair feel healthier, smoother and have more volume. Overall I'm extremely pleased with this shampoo and I'll definitely buy it again.

Review from California Naturals
Helpful?274NAKEX43L616926861518