Maelys Cosmetics is a growing skincare brand that makes firming and flattening serums. The brain claims users can “get unstoppable curves” with their “body shaping products.”
In this article we’ll review every ingredient in some of Maelys Cosmetics’ most popular products based on published medical research to determine if we believe these claims are likely to be accurate, and whether or not we recommend their products.
B-Flat Belly Firming Cream Review
One of Maelys Cosmetics’ most popular products is their B-Flat Belly Firming Cream. The brand claims that this product can decrease the appearance of stretch marks and cause smoother-looking skin.
One effective active ingredient in this formulation is hydrogenated polyisobutene, which is a skin moisturizer. A clinical trial published in the Journal of Cosmetic Science found that this compound improved skin moisture content and reduced water loss by 33% compared to an inert control ingredient. Hydrogenated polyisobutene is also non-toxic and poses no safety concerns.
This cream also contains sodium hyaluronate, which is one of the most effective and well-studied skincare ingredients. As we documented in our recent review of Bio Oil ingredients, sodium hyaluronate has significant research backing proving it to reduce wrinkles and the appearance of stretch marks.
Shea butter provides skin barrier repair and further moisturization benefits, as documented in medical research. The linked study found this botanical ingredient to also have an anti-inflammatory effect. Shea is included in many cosmetic formulations due to its efficacy and its pleasant scent.
Bentonite is another research-backed ingredient in B-Flat Belly Firming Cream. It’s a type of clay. A 2017 medical review found that bentonite had a healing effect on skin and could reduce visible lesions and ulcers. This suggests that this ingredient may be effective in regard to the brand’s health claim of smoother-looking skin.
Cocoa seed butter appears to be another effective ingredient, with a research review stating the following: “histological and analytical studies showed that the topical application of cacao extracts or theobromine markedly prevented photodamage, including wrinkle formation, dermal connective alteration and collagen accumulation.”
This suggests that cocoa seed butter when applied topically may reduce skin damage during exposure to UV rays from the sun. That being said, we would still recommend sunscreen as the main strategy for minimizing photodamage.
While there clearly exist a number of effective compounds in this formulation, there are also a number of additive ingredients we would recommend avoiding from a health perspective.
Maelys Cosmetics B-Flat cream contains three separate artificial dyes: Yellow 6, Yellow 5 and Red 33. Artificial dyes provide no dermatological benefits and are inferior alternatives to food-based dyes in our opinion. A medical review published in the International Journal of Occupational Medicine and Environmental Health found that Yellow 6 and Yellow 5 are frequently contaminated with carcinogens (cancer-causing compounds).
We recommend avoiding all cosmetics products with artificial dye. Some cosmetics we’ve reviewed on Illuminate Health contained one artificial dye, but we haven’t come across a product with three in one single formulation.
This cream also contains fragrance, which is a broad and poorly-defined term. It can refer to a number of chemical compounds, some of which are safe and some of which may be unsafe. A meta-study from 2016 examined the safety of fragranced consumer products, including personal care products, and concluded that “everyday fragranced products can impose serious risks to human health.”
We’re not suggesting that the fragrance in Maelys Cosmetics is necessarily harmful to human health; we just recommend avoiding all fragranced products because this ingredient adds no skincare benefit and seems to add some risk.
B-Flat also contains a preservative called chlorphenesin which has been found to be toxic to human cells in an in vitro (test tube) study.
Overall, B-Flat Belly Firming Cream is likely to be effective for reducing wrinkles and moisturizing the skin because it contains a number of research-backed ingredients. However, we don’t recommend this product because it also contains artificial dye, fragrance and preservatives.
B-Thicc Booty Enhancing Mask Review
Maelys Cosmetics sells a gel that they claim “helps the booty appear volumized and voluptuous.” The brand claims that this product “visibly tightens the skin” and helps the area look firm.
One of the active ingredients is sodium hyaluronate, which we already determined to be effective in the previous section.
Grape seed oil is one of the active ingredients in this formulation that we consider to be effective. It was found in a clinical trial published in 2022 to be effective for “improving imperfections of the human skin.” Specifically, when grape seed oil was applied topically it reduced sebum (oil) production, redness and pore size.
Beeswax can improve skin barrier function. A clinical trial found that the nanoparticles in beeswax aided treatment of skin diseases with damaged skin barrier function. This ingredient also has anti-inflammatory and anti-bacterial properties. It’s notable that Maelys Cosmetics uses synthetic beeswax, while most of the medical research we reviewed on this ingredient utilized natural beeswax, so we will consider this ingredient potentially effective.
We cannot identify any other effective ingredients in this formulation based on medical research in peer-reviewed journals conducted on human trial participants.
Like B-Flat, B-Thicc Booty Enhancing Mask contains both fragrance and artificial food dye. In this case, the food dye used is Blue 1. The medical review on food dye we linked in the previous section also covered data on Blue 1, and found that this ingredient could cause hypersensitivity reactions.
B-Thicc gel contains a preservative called sodium benzoate, which may cause sensitivity reactions in some patients, as we documented in our Native Deodorant review (another skincare product containing this preservative). This is a relatively mild and non-toxic preservative compared with some of the alternatives, but we typically recommend avoiding preservatives in skincare formulations if possible. Since these ingredients do not improve skin quality, and may pose minor health risks, it seems sensible to choose skincare products without preservatives.
This product also contains fragrance.
Overall we do not recommend B-Thicc Booty Enhancing Mask. While it has many effective ingredients, it also has additive ingredients such as artificial dye and fragrance. We consider the B-Thicc formulation to be healthier than the B-Flat formulation. The B-Thicc formulation contains a similar effective ingredient profile but only contains one (rather than three) artificial dyes, and is also free of chlorphenesin, an ingredient we recommend consumers avoid.
Questionable “Clinical Results” Section
On some of Maelys Cosmetics’ product pages, the brand includes a “Clinical Results” section with data on the effectiveness of their products. For the B-Thicc Booty Enhancing Mask product for example, the brand claims that the product is “clinically proven to significantly firm the skin.”
In an asterisk below, the brand clarifies that this data comes from a self-assessment on 32 subjects. This means they asked 32 consumers to self-rate their skin quality.
We do not consider this legitimate clinical research, and we consider this data so biased as to be essentially meaningless.
Legitimate clinical research involves placebo controls, scientists and is typically published in peer-reviewed medical journals. Asking 32 patients how a product affects them is not clinical research in any legitimate sense of the term in our opinion, and we disagree ethically with brands that engage in this type of marketing.
We would urge Maelys Cosmetics to refrain from claims of clinical efficacy until they have funded legitimate clinical trials proving their products to be effective, or at least some of the constituent ingredients to be effective at the concentrations used in their products.
Questionable Marketing Claims
We disagree with a number of the marketing claims made by Maelys Cosmetics. Right on their homepage, the brand claims that their products can help users “get unstoppable curves.” This claim is uncited.
We consider it to be logically impossible for skincare products to increase “curves” which are caused by genetics and fat deposits. A woman’s body composition can not be changed by applying topical gels or creams, nor does the brand provide any research suggesting it can.
Similarly, we disagree with the claim that the B-Thicc product “helps the booty appear…voluptuous.” Again, we haven’t come across any medical studies suggesting that topical gel can actually change the shape of a woman’s body, nor does the proposition make much logical sense.
We have no issue with the claims about “firming” or “tightening,” because ingredients like hyaluronic acid can firm skin, reduce wrinkles and improve skin quality. It’s the claims about a woman’s figure and shape we disagree with, and consider to be misleading marketing.
Maelys Cosmetics Real User Review
One of the most popular reviews of Maelys Cosmetics comes from a YouTube creator channel called “Deidra Caren.” They provide their personal experience with the B-Flat, B-Perky and B-Tight products. The review appears unsponsored:
No Public Team Page
Maelys Cosmetics does not appear to have a public team page on their website. This is a minor consideration, but we typically recommend that consumers evaluate whether there are legitimate scientists involved in the formulation of skincare products.
It’s challenging to formulate an effective and safe skincare product, and brands with scientists and researchers on staff tend to highlight these people on their website, as it builds consumer trust. We believe that skincare brands with scientists, doctors and other credentialed researchers on staff are more trustworthy than brands without.
Our question is: who’s formulating these Maelys Cosmetics products? What’s their educational and professional background?
Maelys Cosmetics Pros and Cons
Here’s a quick overview of the pros and cons of this brand in our opinion:
- Effective formulations
- Great branding
- Questionable additive ingredients
- Questionable marketing claims
- Questionable “clinical results”
- No public team page