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Rule Cosmeceuticals Stem Cell Hair Regrowth Serum - 1 fl oz
$99.99
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About this item
Highlights
- Rule Stem Cell Scalp Serum for Hair Growth and Thickening
- A hair growth serum for men that revitalizes hair and boosts confidence
- Filler free powerful hair thickening serum formula that includes Malus Domestica Fruit Cell Culture Extract
- Includes Procapil, a patented complex that targets the underlying causes of hair loss
- The hair growth oil for men who want fast results
Description
You are not alone. Hair loss affects millions, but with Rule's hair regrowth serum, confidence can be restored. This topical hair growth serum for thinning hair helps combat shedding, receding hairlines, promotes longer growth phases and halts hair aging
Features a potent blend of castor oil, saw palmetto, ginseng, and more, this hair serum for hair loss formula delivers fast, clean results with zero fillers.
Key Anti Hair Loss Serum Ingredients:
Malus Domestica Fruit Cell Culture Extract: From rare Swiss apple stem cells. Helps stimulate dormant follicles, kickstart hair growth and revitalize thinning areas.
Diaminopyrimidine Oxide: Fortifies hair, reduces breakage, enhances strength, resilience and thickness.
Procapil: Targets underlying causes of hair loss, improves follicle anchoring, promotes a healthier scalp environment.
Ginkgo Biloba Extract: Boosts scalp circulation. Delivers essential nutrients to hair follicles, and fuels new growth while optimizing hair health.
Panthenol (Vitamin B5): Provides essential hydration to the scalp and hair, locks in moisture and promotes the growth of stronger, thicker hair.
Features a potent blend of castor oil, saw palmetto, ginseng, and more, this hair serum for hair loss formula delivers fast, clean results with zero fillers.
Key Anti Hair Loss Serum Ingredients:
Malus Domestica Fruit Cell Culture Extract: From rare Swiss apple stem cells. Helps stimulate dormant follicles, kickstart hair growth and revitalize thinning areas.
Diaminopyrimidine Oxide: Fortifies hair, reduces breakage, enhances strength, resilience and thickness.
Procapil: Targets underlying causes of hair loss, improves follicle anchoring, promotes a healthier scalp environment.
Ginkgo Biloba Extract: Boosts scalp circulation. Delivers essential nutrients to hair follicles, and fuels new growth while optimizing hair health.
Panthenol (Vitamin B5): Provides essential hydration to the scalp and hair, locks in moisture and promotes the growth of stronger, thicker hair.
Hair Type: All Hair Types
Product Form: Serum
Beauty Purpose: Hair Regrowth
Net weight: 1 fl oz (US)
TCIN: 92188221
UPC: 854354007488
Item Number (DPCI): 049-50-9315
Origin: Made in the USA
If the item details aren’t accurate or complete, we want to know about it.
Shipping details
Estimated ship dimensions: 1.929 inches length x 3.622 inches width x 5.929 inches height
Estimated ship weight: 0.45 pounds
We regret that this item cannot be shipped to PO Boxes.
This item cannot be shipped to the following locations: American Samoa (see also separate entry under AS), Guam (see also separate entry under GU), Northern Mariana Islands, Puerto Rico (see also separate entry under PR), United States Minor Outlying Islands, Virgin Islands, U.S., APO/FPO
Return details
This item can be returned to any Target store or Target.com.
This item must be returned within 90 days of the date it was purchased in store, shipped, delivered by a Shipt shopper, or made ready for pickup.
See the return policy for complete information.
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4.7 out of 5 stars with 1453 ratings
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4.4 out of 5 stars with 25 reviews
4 out of 5 stars
8 November, 2025
originally posted on influenster.com

Hair growth assist
[This review was collected as part of a promotion.] This serum offers a luxurious, plant-based approach to thinning hair. Its high-quality, non-greasy formula, housed in sleek packaging, is easy to incorporate into any routine—just one dropper full massaged into the scalp each week, making compliance simple. Key to its claims is the inclusion of Swiss apple stem cells and Procapil™, along with nourishing elements like biotin, castor oil, and saw palmetto, which acts as a natural DHT blocker. Initial user feedback consistently praises the serum for feeling lightweight, quickly absorbing without residue, and improving overall scalp health, often noting less inflammation and shedding even in early use. However, as with most growth serums, real efficacy requires patience; dramatic regrowth takes at least three to six months of diligent application. While the natural ingredient profile and pleasant texture are a big plus, the premium price point may require users to trust the initial encouraging signs while waiting for long-term, visible density improvements. This is a promising option for those seeking a minoxidil-free solution.
5 out of 5 stars
6 November, 2025
originally posted on influenster.com

A gentle, lightweight serum that delivers gradual
[This review was collected as part of a promotion.] I’ve been using the Rule Cosmeceuticals Stem Cell Hair Regrowth Serum for a while now, and I’m genuinely impressed. The texture is lightweight and absorbs quickly without leaving any residue. The scent is mild and clean, which I really appreciate for a daily-use product. In terms of effectiveness, I’ve noticed that my hair feels stronger at the roots and looks a bit fuller in the areas I’ve been targeting. It’s not a miracle overnight fix, but the gradual improvement is definitely there. The ingredients list is solid and feels more premium compared to many other serums I’ve tried. The packaging is simple, sturdy, and the dropper makes it easy to apply directly to the scalp without wasting product. For the price, I feel like the value is good considering the quality and results. Overall, a great serum if you’re looking for something gentle yet effective for hair regrowth.
4 out of 5 stars
5 November, 2025
originally posted on influenster.com

Effective ingredients in a bottle
[This review was collected as part of a promotion.] Thank you Rule Cosmeceuticals and Influenster for letting me try the hair growth serum for free. I have been religiously applying it for a couple of weeks now and observing for results. So far it's been barely minimal but I am optimistic. Its ingredients are top grade so confident of its effectivity.
4 out of 5 stars
5 November, 2025
originally posted on influenster.com

Great value and ingredients
[This review was collected as part of a promotion.] Rule Cosmeceuticals Stem Cell Hair Regrowth Serum offers great value with quality ingredients like biotin, peptides, and stem cell extract. It absorbs quickly, strengthens hair, and promotes growth. Sleek packaging and light texture make this an effective serum.
5 out of 5 stars
3 November, 2025
originally posted on influenster.com

Love it so far
[This review was collected as part of a promotion.] Well the scent seems very good. The value for the money I like the packaging is very nice. The ingredients seems to be top notch and of high quality and the effectiveness is top tier growing hair and as little as 3 days
4 out of 5 stars
3 November, 2025
originally posted on influenster.com

Great product that's fun to use
[This review was collected as part of a promotion.] Overall, I found this to be a very interesting and fun product to use. The design for the dropper is extremely cool. It draws up the serum as you unscrew the lid. The dropper was easy to use and made application a breeze. I thought the scent was nice and not too strong. I used this for about a month and did feel like I could see new hair growth. My only concern was that the packaging says to "keep away from children and pets" which we have both in our household. I felt safer using this immediately before leaving the house for work, and then taking a shower to wash it off as soon as I got home.
1 out of 5 stars
1 November, 2025
originally posted on influenster.com

Doesn’t work
[This review was collected as part of a promotion.] This product has no scent and is easy to use. The packaging is nice looking. However it doesn’t do anything for your hair. I suppose the ingredients are safe but they are ineffective.
3 out of 5 stars
29 October, 2025
originally posted on influenster.com

Don’t know
[This review was collected as part of a promotion.] The honest God truth is that I don’t see any change to warrant me saying that the product is effective. The ingredients would suggest that it should work maybe it’s the long hair?
5 out of 5 stars
29 October, 2025
originally posted on influenster.com

Subtle Start, Promising Progress
[This review was collected as part of a promotion.] I’ve been using the Rule Stem Cell Hair Regrowth Serum for about six weeks, mostly along my temples and crown where thinning was most noticeable. The texture is lightweight and absorbs quickly—no greasy residue or weird tingling. I apply it nightly, and while results weren’t instant, I started noticing baby hairs sprouting around week four. My scalp feels healthier, less itchy, and shedding has slowed. The apple stem cell and Procapil blend feels thoughtfully formulated. It’s not magic overnight, but it’s the first serum that’s made me feel hopeful.
4 out of 5 stars
28 October, 2025
originally posted on influenster.com

Feels Good on Scalp
[This review was collected as part of a promotion.] Let’s start with the packaging. It’s beautiful and looks really premium. The serum comes in a matte black glass bottle inside a matching box with a foam insert that makes it feel very upscale. The dropper design looks fancy, but it took me a minute to figure out how to use it since it’s not the typical style. The formula itself was a pleasant surprise. Most hair growth serums make my scalp greasy, but this one absorbed quickly and didn’t leave any residue. It feels light and clean on the skin. It does have a strong alcohol scent at first, but that fades quickly after applying. The ingredients are what made me excited to try it in the first place. It’s only been about a week, so I can’t say I’ve seen major results yet, but my scalp already feels healthier. I’ll keep using it to see how it performs over time.
5 out of 5 stars
27 October, 2025
originally posted on influenster.com

Great for thinning hair!
[This review was collected as part of a promotion.] As someone who has… let’s just say… less than a full head of hair. This has been very helpful in my journey to protect what I have. It has good active ingredient and doesn’t smell badly. The packaging is nice and it appears to be a good value for the money.
5 out of 5 stars
26 October, 2025
originally posted on influenster.com

Great ingrediens
[This review was collected as part of a promotion.] This has great ingredients and nice packaging. This is scent free and not oily. It seems to help but need to use it longer to see how effective it is.
5 out of 5 stars
25 October, 2025
originally posted on influenster.com

Great serum
[This review was collected as part of a promotion.] I upgraded my hair care routine with this serum . It’s a targeted, high-concentration serum engineered with advanced Stem Cell technology to stimulate the scalp environment and awaken dormant follicles. We believe in getting to the root of the problem, literally.
4 out of 5 stars
24 October, 2025
originally posted on influenster.com

Has new hair technology for maximum benefits
[This review was collected as part of a promotion.] This was my first time trying this brand this is a stem cell hair regrowth, serum number four phyto.Cell technology, a nourishing blend, helps to optimize scalp penetration and helps improve the appearance of thinning hair.It is suitable for all hair types, regardless of gender.Age or hair structure, ideal for people to help increase hair growth.Its plant based stem cells are made from swiss apples, strengthening capillaries and improved blood circulation in the scalp to revitalize hair follicles. Prohairin stimulates hair follicles to produce a strong hair shaft. Can be used on wet or dry hair.It has beautiful packaging, this beautiful black, sleek box with a nice black glass or hard plastic bottle.It's one fluid ounce thirty milliliters, it presents very prestigious and luxurious.And I am hoping for some great results as I continue to use it.So far so good!!
4 out of 5 stars
23 October, 2025
originally posted on influenster.com

Happy scalp. Happy hair?
[This review was collected as part of a promotion.] Cool little bottle. Sleek and sexy. Does not smell like much, which is probably for the best. I will say there's not a lot of product when you really look into it and the amount you need to use to cover your head, but it's not horrible. Cannot speak on effectiveness since you have to use it for a minimum 6 months really to see any changes, but it does not burn or make my head itch and it keeps my scalp moisturized and feeling good. And that's half the battle.
5 out of 5 stars
23 October, 2025
originally posted on influenster.com

Great product!
[This review was collected as part of a promotion.] I thankfully dont need to "regrow" my hair, but using this product is a great preventive based on my research. The ingredients are naturally derived from plant stem cells, which shows promising results. I look forward to my continued use
5 out of 5 stars
23 October, 2025
originally posted on influenster.com

Less Shedding and work wonder
[This review was collected as part of a promotion.] I’ve been using the Rule Cosmeceuticals Stem Cell Hair Regrowth Serum and I’m really impressed. The packaging looks clean and professional, making it easy to apply without any mess. I love the high-quality ingredients like Swiss apple stem cells, Procapil, and castor oil that work together to strengthen and revive my hair. The serum absorbs quickly, doesn’t feel greasy, and has a fresh light scent. After a few weeks, I’ve noticed less shedding and healthier-looking hair, making it totally worth the value.
4 out of 5 stars
22 October, 2025
originally posted on influenster.com

More hair for you
[This review was collected as part of a promotion.] I received this product and exchange my honest review. The packaging is nice very pleasing to the eye. It’s an oil base serum so it’s easy to apply and easy to wash off.
5 out of 5 stars
21 October, 2025
originally posted on influenster.com

Thinning hair
[This review was collected as part of a promotion.] Having struggled with thinning hair for a while, I was intrigued but skeptical about the Rule Cosmeceuticals Stem Cell Hair Regrowth Serum, given all the bold claims surrounding cosmeceuticals and stem cell technology. I’ve only been using it for a week, so I know it's far too early to see any dramatic results, but I have to say, I'm genuinely encouraged by the initial changes. My scalp feels noticeably healthier and less inflamed, and there seems to be a reduction in daily shedding already, which is a huge win in my book. The serum itself is lightweight, absorbs quickly, and doesn't leave any annoying residue, making it a very easy addition to my morning and night routine. While I'm not expecting a full head of new hair overnight, these early positive signs are more than enough motivation for me to continue using it diligently. I'm genuinely optimistic and committed to sticking with it to see what kind of transformation a few months might bring.
5 out of 5 stars
21 October, 2025
originally posted on influenster.com

So far so good.
[This review was collected as part of a promotion.] This is a very fancy serum with no scent and very nice packaging. The ingredients are rare to find so the value for many and the effectiveness are great.