California Naturals Re:GRO Anti-Thinning Shampoo - 16.5 fl oz: Silicone-Free, Sulfate-Free, Contains Biotin, Contains Argan Oil
$9.99
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Guests are saying
This shampoo has garnered attention for its pleasant scent and effectiveness in promoting hair health. Many guests appreciate its natural ingredients and gentle formula, which leaves hair feeling clean and soft. While some have experienced mixed results regarding hair thickening, the overall consensus is that it helps reduce shedding and improves scalp health. Guests enjoy the lather and ease of use, making it a popular choice for those seeking a gentle yet effective shampoo.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.1 out of 5 stars with 48 reviews
effectiveness: 3.71 out of 5
quality: 3.71 out of 5
value: 3.57 out of 5
44% would recommend
9 recommendations
2 out of 5 stars
Thumbs down graphic, would not recommend
10 June, 2026Verified purchase
Don't waste your money!
You have to use so much of this shampoo to get a good lather. And even then, it leaves your hair feeling matted and squeaky when you run your hands over it. My hair also dries greasy because of this shampoo and I feel like I’m washing my hair more frequently than ever. I would literally recommend my husband’s two-in-one shampoo over this one.
4 out of 5 stars
Thumbs up graphic, would recommend
4 June, 2026Verified purchase
(no review title)
Love the smell of this shampoo and clean ingredients.
3 out of 5 stars
Thumbs down graphic, would not recommend
23 May, 2026Verified purchase
rosen8
The image on here says the scent is fresh herbs. Well, the bottle I got says rosemary. I'm not sure if it's the same thing and just an older bottle, but it's definitely not what was marketed to me.
3 out of 5 stars
Thumbs down graphic, would not recommend
18 May, 2026Verified purchase
Not what I was hoping for
I liked the smell of this. To me it had a tea tree like smell to it. I wanted to love it because of the clean ingredients. I didn’t get to use it long enough to see if it works for the thinning. The shampoo left my hair very waxy/dirty/greasy feeling. My hair lacked the luster and softness and clean feeling that other shampoos give me. I shower at night and would wake up looking like my hair hadn’t been washed for days.
1 reply from California Naturals team - 26 days ago
Hi there, thank you so much for your honest feedback — we are sorry to hear the Re:GRO Shampoo didn't give you the clean, soft feeling you were looking for! This can sometimes happen during an adjustment period as your scalp gets used to a sulfate-free formula, but we completely understand it may not be the right fit for everyone. We would love to help you find something that works better for your hair — feel free to reach out to us at hello@thecalifornianaturals.com and we will be happy to help! 🌻
1 out of 5 stars
Thumbs down graphic, would not recommend
7 May, 2026Verified purchase
Nope
Not work good for my hair at all, gave me dandruff like crazy and the conditioner was ruff not smooth at all
1 reply from California Naturals team - 1 month ago
We are so sorry to hear this was not the right fit for your hair! Everyone's hair is different and we hate to hear it caused any irritation. We would love the chance to make it right — please reach out to us directly at hello@thecalifornianaturals.com so we can assist you further. Thank you for your honest feedback!
3 out of 5 stars
Thumbs down graphic, would not recommend
30 April, 2026Verified purchase
Not great
Left my hair pretty greasy and stringy, might work for someone with dry hair but didn't work for me. It smells strongly of rosemary which is nice but may not be for everyone.
1 reply from California Naturals team - 27 days ago
Hi there, thank you so much for taking the time to share your honest feedback! We are sorry to hear the Re:GRO Shampoo wasn't the right fit for your hair type. We completely understand it may not be for everyone! If you'd like to find a better match, feel free to reach out to us at hello@thecalifornianaturals.com and we would love to help point you in the right direction. 🌻
5 out of 5 stars
Thumbs up graphic, would recommend
6 April, 2026Verified purchase
Postpartum moms, this ones for you!
So 12 months PP and my hair started falling out. Now 16 months PP and it’s coming out in clumps, I’ve lost so so much hair. I’ve been using this for about two months and while it hasn’t stopped the hair from falling out (thank you hormones), it HAS helped new hair start growing pretty fast. I can’t go without this stuff!
1 reply from California Naturals team - 28 days ago
This made our whole day! 🌻 Thank you so much for sharing your journey — postpartum hair loss is so real and we know how emotional it can be. We are thrilled to hear the Re:GRO Shampoo is helping new growth come in! 💛
5 out of 5 stars
Thumbs up graphic, would recommend
15 March, 2026Verified purchase
Amazing!! Best shampoo on the market! Hair looked immediately thicker and organic!
This is by far the best deal I have found on thickening shampoo that actually works.
5 out of 5 stars
Thumbs up graphic, would recommend
18 February, 2026
Awesome! Works!
Loved using this with the conditioner and the serum. Noticed a lot less hair, breakage, and more hair growth. Very pleasant natural soft scent.
1 reply from California Naturals team - 3 months ago
Thank you so much for the feedback! 🌿✨ We’re thrilled to hear you’re loving the Re:GRO Anti-Thinning Shampoo and that you’ve noticed less breakage and improved hair growth when using it with the conditioner and serum — that’s exactly what we hope for!💛 Thank you again for sharing your experience and for choosing California Naturals!
1 out of 5 stars
14 February, 2026Verified purchase
(no review title)
Not because of the item but because the way it was packed…. Leaked everywhere. Get in store if you can.
1 reply from California Naturals team - 4 months ago
Hi Rey, We're so sorry to hear about the leaking issue with your order! That's definitely not the experience we want you to have, and we really appreciate you bringing this to our attention. Packaging and safe delivery are incredibly important to us, and we're sorry this happened. We'd love to make this right for you - please reach out to us directly at hello@thecalifornianaturals.com and we'll send you a replacement or process a refund. Thank you for giving our products a try, and we hope to have the opportunity to provide you with a better experience!
5 out of 5 stars
20 January, 2026
Great shampoo
[This review was collected as part of a promotion.] It left my hair so soft and it seems like it's helping it to grown.
5 out of 5 stars
8 January, 2026
My new favorite shampoo
[This review was collected as part of a promotion.] After having 2 kids, my hair starts to thin out and never feel fullness after washing my hair. I have tried all different shampoo from big brand to organic. Nothing make my hair feel like before have kids. Until I tried this once for almost a month. I only wash my hair every other days. The shampoo doesn't create a lot of bubbles feel like others, rosemary scented. My hair didn't fall out a tons. I can feel the fullness after drying out my hair. This one will be my go to from now on.
3 out of 5 stars
25 December, 2025
Feels nice but no difference noticed
[This review was collected as part of a promotion.] I have been using it consistently for a couple of weeks. It has an earthy smell and lathers nicely. I havent noticed any changes in my hair. It doesn't feel thicker. But it proabably needs more time
4 out of 5 stars
24 December, 2025
Those who want thicker, longer, healthier-looking hair and h
[This review was collected as part of a promotion.] This product helps strengthen and thicken hair with regular use, is safe for the scalp, and is worth trying if you're looking for a gentle shampoo to prevent hair thinning.
5 out of 5 stars
24 December, 2025
Honestly, amazing.
[This review was collected as part of a promotion.] So I'm always usually pretty skeptical when I'm trying new things. I mean after all we don't know if it's going to work or not. I honestly am usually even more hesitant trying things on my hair just because I have very fine but thick native American hair. So it gets dry very quickly. I've been using this for the last week and honestly just truly amazing. My hair feels soft and it's very shiny and it feels even thicker than it did before. I am postpartum so I need a little help in that department with the postpartum shed happening. I appreciate very much giving me the sample and I truly will be buying this product in the future.
3 out of 5 stars
22 December, 2025
Good, but not great.
[This review was collected as part of a promotion.] First off, I'd like to thank California Naturals for the free product! I used the California Naturals Re:GRO anti-thinning shampoo for a couple weeks to give it a chance to see if it worked. As far as a more "natural" product, the shampoo worked surprisingly well at cleaning my hair. Often times, more natural shampoos leave my hair feeling oily and greasy, but this one left my hair feeling pretty clean. However, I noticed no difference in my shedding. The hair falling out while washing remained pretty consistant the entire time with no difference as to how my hair was prior to using. So it didn't necessarily do what the name implies which is why I give it 3 stars.
5 out of 5 stars
20 December, 2025
Smells Great!
[This review was collected as part of a promotion.] This shampoo leaves my hair feeling nice and clean. I like the way it lathers. The pump is very useful in the shower. Plus it smells amazing! It smells a lot like rosemary.
5 out of 5 stars
19 December, 2025
Amazing!
[This review was collected as part of a promotion.] 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.
4 out of 5 stars
19 December, 2025
It's Fine
[This review was collected as part of a promotion.] I really can't comment on whether the anti-thinning aspect of this shampoo is effective. It does a good job of getting my hair clean, but I don't love the scent, which is very herbal. It's something I'll definitely continue to use, and if I find that it helps to thicken up my hair or allows it to grow longer, I'd purchase it myself.
4 out of 5 stars
17 December, 2025
Great product for hair loss
[This review was collected as part of a promotion.] California Naturals sent me this free sample through the BzzAgent sampling program and I can honestly say this is a really great shampoo. I can't tell a huge difference if it made my hair thicker, I used it for 3-4 weeks, but I can tell a huge difference on my hair loss. This shampoo is the first shampoo that I have used in over 2 years that has helped a lot with hair loss.