California Naturals Re:GRO Anti-Thinning Scalp Serum - 3 fl oz: Unscented, All Hair Types
$19.99
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Guests are saying
This scalp serum has garnered positive feedback for its lightweight texture and ease of application, making it a favorite among guests looking to promote hair growth and reduce breakage. Many appreciate its natural ingredients and the absence of greasiness, which allows for daily use without weighing hair down. Guests have reported noticeable improvements in hair thickness and scalp health, making it a promising option for those experiencing hair loss or thinning.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.5 out of 5 stars with 45 reviews
effectiveness: 4.5 out of 5
quality: 5 out of 5
value: 5 out of 5
100% would recommend
2 recommendations
4 out of 5 stars
Thumbs up graphic, would recommend
25 March, 2026
Will buy again and again
Started using this for past 3 weeks and liking the texture of these serum a lot. Is it helping ? Still not so sure but it is not having any adverse effect though. I am applying it at night before going to bed. Application is super easy because of it's unique design. I will use 2 bottles and post my review here again. Hopefully, it will help someone who is in doubt whether to buy it or not.
1 reply from California Naturals team - 2 months ago
Hi there! Thank you so much for sharing your experience! We love hearing that you're enjoying the texture and easy application. Results can take a little time, so we're excited for you to continue your journey — can't wait to hear your update after the second bottle!
5 out of 5 stars
Thumbs up graphic, would recommend
18 February, 2026
Awesome! Works!
Loves using this with the re:gro shampoo conditioner. Noticed a lot more hair growth and way less hair breakage.
1 reply from California Naturals team - 3 months ago
Thank you so much for the love! 🌱 We are thrilled to hear you're noticing more hair growth and less breakage.
5 out of 5 stars
22 January, 2026
I would buy this product over and over again
[This review was collected as part of a promotion.] This is the best scalp reviver I have ever used. My hair is growing back at the edges and is more thicker than before. I love that it is made from natural ingredients.
5 out of 5 stars
13 January, 2026
Great product!
[This review was collected as part of a promotion.] I've been using this for several weeks and can already notice a difference. My hair feels stronger and I'm noticing less breakage.
4 out of 5 stars
11 January, 2026
It seems to work how is expected!
[This review was collected as part of a promotion.] It's hard to tell because I think I need to use it longer for more efficient results. However, for the length of time I have been using it it does seem to help with growth. There seems to be more hair growing. Also, I love that this one does not make my hair oily and I can use it on my clean scalp.
5 out of 5 stars
6 January, 2026
I will buy this again
[This review was collected as part of a promotion.] I have had scalp for years and couldn't find anything that worked till now. This serum does not make my scalp feel dry like the other ones. Highly recommend
4 out of 5 stars
6 January, 2026
Consistency is Key
[This review was collected as part of a promotion.] I really love the California Naturals line of products, so I was excited to try something for my natural hair loss as a by-product of aging that wasn't filled with harsh chemicals. I have seen new growth through using this, but consistency is the biggest difference maker- I missed a week and had no noticeable changes to my hair whatsoever, where this normally gives a feeling of fullness. It's not greasy and the smell is very faint- it's a lot better than other products I've used of this same type.
3 out of 5 stars
1 January, 2026
Does help with increasing growth
[This review was collected as part of a promotion.] This does help I feel increases growth with hair however it definitely leaves my hair looking pretty greasy unfortunately
4 out of 5 stars
1 January, 2026
LOVED IT
[This review was collected as part of a promotion.] I applied this as directed and saw real growth to my baby hairs. I was honestly shocked with how well this worked
4 out of 5 stars
29 December, 2025
Light weight serum
[This review was collected as part of a promotion.] The serum is light weight and is not too sticky. Works great.
4 out of 5 stars
29 December, 2025
I actually feel like I am seeing results!
[This review was collected as part of a promotion.] I have tried a few different serums. Overtime I feel like I never see results and then I remove them from my routine. After almost a month, I am seeing growth in a way I havent in a long time! For reference, I went Blonde a long time ago and continued to bleach my hair for years. It felt like my hair would never grow past my shoulders ever again. If you are looking for a product with good ingredients… I would definitely start here!
4 out of 5 stars
29 December, 2025
Received for reviewing purposes
[This review was collected as part of a promotion.] I'm experiencing hair loss due to stress and poor diet. My hair sheds a lot everyday and I've been stressed out about it. I received this serum for reviewing purposes and was skeptical to try it but surprisingly it's as effective as rosemary oil
4 out of 5 stars
29 December, 2025
I like it so far!
[This review was collected as part of a promotion.] This California Naturals ReGrow Serum is really nice! I have been using it the last couple weeks after I wash my hair. It smells nice, it applies easily/has a nice nozzle that doesn't leak everywhere, and it makes my scalp feel amazing afterwards! It's not tingly, but it makes it feel super clean and I notice it leaves it much less oily than before. I would definitely recommend if you have oily, dry hair (like me) or just want to try treating your scalp better. I'm super excited to see if it helps my thin hair grow some, but I know that will take some time. :)
4 out of 5 stars
28 December, 2025
Comfortable scalp serum
[This review was collected as part of a promotion.] Thanks to California Naturals for the free RE:GRO Anti-Thinning Scalp Serum. I was excited to test out a hair product like this one. I've been noticing my hair has been falling out more than usual so anything to help my hair grow back again is great. I like the ingredients this has and I'm sure that will help with the hair growth. So far as I've used it, I've seen small results, but I'm sure with more time the results will be better. I have some dry areas in my scalp and this serum nourishes my scalp, making the dry areas smaller. Also my hair has been falling out less than before. This serum is so easy and to use and the bottle is a good size to hold. It's not greasy at all so it doesn't make my hair feel or look greasy after applying. The scent isn't uncomfortable. It does have a slight tea tree oil but not strong.
3 out of 5 stars
28 December, 2025
Unsure about this product
[This review was collected as part of a promotion.] I have been using this product for approximately a month, and I must say that I have not observed any hair regrowth. It's possible that I might see some improvement if I continue using it for a longer period, so I plan to keep using it until the bottle is empty. On a positive note, I appreciate that this product does not leave my hair feeling greasy. I have tried other hair growth products in the past, and they always made my hair greasy, so this has been a refreshing change. Additionally, there is no strong odor, which is another aspect I liked about it.
5 out of 5 stars
26 December, 2025
Great growth serum for color treated hair! All natural!!
[This review was collected as part of a promotion.] I always am weary of introducing new hair products since i dye my hair, but I do have breakage from the bleach. This serum is great! I use it when I do my slick backs, but it's not too sticky so you could use it on your cleaner hair days. I haven't seen too much growth yet as it's only been a few weeks, but I will continue to use it since it's so simple! I also have a friend who just finished chemo, and she's looking for clean products. Since this is all natural, she's also giving it a try!
4 out of 5 stars
25 December, 2025
For hair care routine
[This review was collected as part of a promotion.] I have been using this for last three weeks and love this product . A perfect texture with a pleasant smell. Makes my scalp feel invigorated while helping for hair growth . I love the clean ingredients and happy that it doesn't leave an oily gross residue. So happy with results .
4 out of 5 stars
23 December, 2025
Shows potential!
[This review was collected as part of a promotion.] I received this product for free in exchange for an honest review. I've been using this product after every wash for the last four weeks. The bottle says to use it for a few months before seeing results but I think I'm beginning to see results at this point. I'm including two pictures of second-day hair, which is when the thinness of my hair is most noticeable. The product itself has a subtle, pleasant scent and is easy to work with. It does make my hair feel a little bit thick and makes the short baby hair stick up if not slicked down. I think it's a good option for someone that wants a low effort product to improve hair density.
4 out of 5 stars
22 December, 2025
Reduces shedding in the first month of use
[This review was collected as part of a promotion.] I received the Re:GROW Anti-thinning scalp serum for free in exchange for my honest opinion of this product. I have been using the product for about a month and while I haven't noticed significant regrowth of hair, I have noticed a significant reduction in shedding. I do feel that the product made my hair look greasy, however that went away when I washed it out. I used 3-4x/week as directed.
4 out of 5 stars
20 December, 2025
Nothing noticeable yet but I do like it
[This review was collected as part of a promotion.] There hasn't been any noticeable growth yet, but I do like the formula, scent, and thickness of the product. It's pretty thin, which is nice for me since I have fine hair. It's not oily and doesn't make my hair look greasy or weighted down. The scent is noticeable but inoffensive. I feel that it dose moisturize my scalp. In general, I do like it.