Simfort is a brand that makes carbonic acid shampoo for hair loss. The brand claims that their shampoo is the "best hair growth shampoo for men" and that "you don't need to fight genetics" because of their carbonic acid shampoo technology.
But what is carbonic acid and can it really reverse hair loss? Is hair loss caused by a buildup of dirt and grime as Simfort claims? Does this shampoo contain any unhealthy additives? And how do real users rate and describe the effects of Simfort Shampoo?
In this article we'll answer all of these questions and more, as we explain why we consider some of the claims made by Simfort about the true cause of hair loss to be unscientific.
We'll also explain what carbonic acid (the active ingredient in Simfort Shampoo) is and whether it can reverse hair loss, as well analyze the other ingredients to give our take on whether or not this shampoo is likely to be effective, and whether or not it's healthy.
Finally, we'll feature real Simfort Shampoo customer reviews.
Does a Dirty Scalp Really Cause Hair Loss?
As shown above, Simfort’s entire premise is that hair loss is caused by hair follicles being “buried under layers of dirt and grime” and creating what they call a “sebum plug.”
There are no sources or citations for these claims at the time of updating this article.
We want to be clear: male pattern baldness is a very well-established biological process described in thousands of clinical studies. It’s not something yet to be uncovered by a shampoo company.
As documented in a 2022 medical review, male pattern baldness is caused by a miniaturization response of hair follicles to dihydrotestosterone (DHT), not dirt on the scalp.
This process is genetically determined, but can be accelerated by lifestyle factors like stress.
We have not come across any clinical studies suggesting that "dirt and grime" covering hair follicles is the cause for hair loss, nor any suggesting that Simfort's shampoo does a better job clearing dirt and grime from the scalp than any other shampoo.
Does Carbonic Acid Reverse Hair Loss?
As shown above, the active ingredient in Simfort is carbonic acid.
The brand claims that this compound "helps to unclog the hair pores...and repairs the hair follicles."
However, there's a major issue.
According to medical research, carbonic acid only exists at room temperature for fractions of a second, so it’s chemically impossible for this to be an active ingredient in a shampoo.
This is not a cosmetic ingredient; it’s a chemical compound that immediately dissociates into bicarbonate ions.
In our opinion, it's a major red flag that this company is listing an active ingredient that appears to be impossible to include in a shampoo formulation. Since carbonic acid physically cannot be the active ingredient in this formulation, we have no idea what is instead.
The ingredients list for Simfort shampoo (which we'll review in the next section) does not list carbonic acid at all, making their product page even more confusing.
We reviewed another shampoo brand called Fortero that lists carbonic acid as a main ingredient, and had similar concerns.
Ingredient Analysis
The ingredients in Simfort Shampoo are shown above.
There are some ingredients in this formulation which are shown in research studies to improve hair quality.
Hydrolyzed keratin has been clinically shown to improve damaged hair.
Keratin is the core structural protein in hair so this makes sense.
Rosemary leaf oil was shown in a clinical trial published in the Phytotherapy Research journal to promote hair growth.
Lemon fruit extract contains a phytonutrient called limonin which was shown in a 2022 clinical trial to signal hair regrowth.
This was an in vitro (test tube) trial, so the results are weaker than a trial with human participants, but still promising.
There is one inactive ingredient we consider questionable from a health perspective.
Phenoxyethanol is a synthetic preservative, and as we documented in our Raw Sugar Shampoo reviews article, this compound has been clinically shown to be toxic to human cells.
There are also a few ingredients we can't even identify in this formulation, which is not something that's ever occurred before in our hundreds of product formulation reviews.
"LPG" is the second-listed ingredient but we have no idea what this is referring to or if it's an acronym for something. A Google search for "LPG" returns "liquid petroleum gas" which we would hope is not in a shampoo.
"BG" is also listed as an ingredient and is one we can't identify.
Real People Try Simfort Shampoo
A YouTube creator named Dallis Church has a video with over 24,000 views where he claims that Simfort was ineffective for him:
A TikTok user named "JacoLifeHackShow" has a Simfort review that includes before-and-after images suggesting that the product helped regrow his hair:
@jacolifehackshow #greenscreen #simfort #hairloss #hairlossremedy #hairlosssolutions #tips #advice #fyp #tiktok #foryoupage #hairtreatment ♬ original sound - JacoLifeHackShow
Our Clean Hair Growth Picks
Happy Head Topical is our top premium hair growth solution.
This formulation uses FDA-approved hair loss ingredients like minoxidil which is clinically shown to increase hair count by 11%.
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.
All of the products recommended in this section are entirely free of ingredients we consider to be unhealthy.
Simfort Shampoo Pros and Cons
Here are the pros and cons of Simfort Shampoo in our opinion:
Pros:
- Contains some research-backed ingredients
- May support hair regrowth
- May help damaged hair to heal
Cons:
- Active ingredient doesn't appear stable at room temp
- Contains phenoxyethanol
- Questionable health claims on brand website
- Contains several ingredients we can't identify
- Expensive
