Weem is a dietary supplement brand, and their most popular product is a hair growth gummy supplement called "Hair.Skin.Nails." The company claims this supplement "promotes hair growth" and "combats hair thinning."
But do Weem Hair Gummies contain research-backed ingredients for promoting hair growth? Do they contain any unhealthy ingredients? How do they compare to other popular hair growth supplements? And how do real customers rate and describe their effects?
In this article we'll answer all of these questions and more, as we analyze the ingredients in Weem Hair Gummies to give our take on whether or not they're likely to support hair growth, and whether or not they're healthy.
We'll also compare them to other popular hair growth supplements like Nutrafol and Nature's Bounty Hair Growth.
Key takeaways:
- No active ingredients we consider likely effective for hair growth
- Several inactive ingredients we consider unhealthy
- We do not currently recommend Weem Hair Gummies
Ingredient Analysis
The active ingredients in Weem Hair Gummies are shown below:

Inositol is clinically shown to be associated with healthy development of the outer layer of skin, which suggests it may support hair growth.
However, the dose in this supplement is extremely low in our opinion.
Weem uses an inositol dose of 40 micrograms (mcg.)
As a reference for how low this is, the only human trial we could identify on inositol for a hair-related condition used a minimum daily dose of 6 grams (g), or a dose 150,000 times greater than that in Weem Hair Gummies.
The remaining active ingredients are a vitamin and mineral blend, and we don't consider any of these ingredients likely to support hair growth.
As we discussed in our KeraNew reviews article, we're unable to identify any research studies showing that vitamin and mineral supplementation supports hair growth in individuals without specific vitamin and mineral deficiencies.
The inactive ingredients in Weem Hair Gummies are shown below:

Titanium dioxide is banned in the European Union for use as a food additive due to genotoxicity concerns.
Citric acid is a flavor enhancer that's clinically shown to cause inflammation in some individuals, as we documented in our Hairtamin review article.
Glucose syrup, sugar, and glycose and forms of refined, added sugar, which (when consumed in excess) are associated in research studies with increased risk of obesity and cardiovascular disease.
Overall, we do not believe that Weem Hair Gummies are likely to support hair growth, and we consider them unhealthy due to the inactive ingredients highlighted above.
Questionable Website Claims
There are several questionable and uncited claims on the Weem website at the time of publishing this article.
The brand suggests their formulation is "clinically tested," but provides no evidence of this claim and we cannot find any clinical trials on Weem Hair Gummies:

image source: weemco.com
The brand also claims, without any proof or citation, that biotin promotes hair growth:

image source: weemco.com
As we've stated in many hair growth supplement reviews on Illuminate Health, we've never identified one single clinical trial which found biotin to cause hair growth in individuals who are not biotin deficient.
We recommend that consumers avoid health brands that make uncited health and clinical claims.
Weem vs. Other Hair Supplements
Here's how Weem stacks up against other popular hair health supplements in terms of formulation quality and healthiness in our opinion:
Nutrafol
Clinically shown to cause hair growth in women and in men in legitimate trials published in peer-reviewed journals.
Winner: Nutrafol
Nature's Bounty Hair Growth
Contains three active ingredients we consider potentially effective, as we documented in our Nature's Bounty Hair Growth review article.
Free of any inactive ingredients we consider unhealthy.
Winner: Nature's Bounty
Collagen Peptides
Many collagen brands market their supplements as supporting hair growth.
Collagen supplementation was shown in a 2022 test tube study to cause hair growth.
This is a weak standard of evidence, but we still consider it to be a superior standard of evidence to anything provided by Weem.
Winner: Collagen Peptides
Real People Try Weem Hair Gummies
A YouTube creator named Sydney Gurry tried Weem Hair Gummies:
A TikTok creator named Jenny Abramowski shared her experience using Weem Hair Gummies:
@iloveyoujennaaye This is my final review of the weem gummies i was picked to do a product test on @Weem #hairskinnailsgummys #myhairwassodamaged #myhairfeelsamazing #weemvitamingummies #drafts ♬ original sound - Jenny Abramowski
Our Clean Hair Growth Picks
Ritual HyaCera is our top hair growth supplement.
This supplement contains wheat oil extract, and a 2024 clinical trial reported that a wheat lipid complex had "a reducing effect on hair shedding and a stimulating effect on hair reappearance and growth."
MBG Omega-3 Potency+ is our top hair thickness pick.
Supplementation with omega-3 fats and antioxidants is clinically shown to improve hair density, and MBG's supplement contains both.
Both of the products recommended in this section are free of ingredients we consider to be unhealthy.
Weem Hair Gummies Pros and Cons
Here are the pros and cons of Weem Hair Gummies in our opinion:
Pros:
- May support hair growth in individuals with vitamin deficiencies
Cons:
- No active ingredients we consider likely to be effective
- Extremely low inositol dose
- Contains titanium dioxide
- Contains refined, added sugars
- Contains citric acid
- Brand makes questionable clinical & health claims