MSM for Hair Growth: Does It Actually Work?
MSM — methylsulfonylmethane — is an organosulfur compound commonly found in nutritional supplements. It is often promoted for stronger, faster-growing hair because sulfur is associated with keratin, but the evidence for direct hair regrowth is much more limited than the marketing suggests.
What is MSM?
MSM stands for methylsulfonylmethane. It is a naturally occurring organosulfur compound with the chemical formula (CH₃)₂SO₂.
It is commonly used in dietary supplements and is probably best known in products aimed at joint comfort and general musculoskeletal support.
MSM has also become popular in hair, skin and nail supplements because it contains sulfur — an element associated with several structural proteins in the body.
That connection is biologically interesting, but it does not automatically prove that taking MSM stimulates new scalp-hair growth.
Keratin contains sulfur-containing amino acids, particularly cysteine. MSM is a sulfur-containing compound, but the body does not simply transfer MSM directly into hair keratin in a way that guarantees faster growth or greater density.
Why is MSM used in supplements?
Organic sulfur
MSM is a sulfur-containing molecule, which is one reason it is often included in formulas aimed at connective tissue, hair, skin and nails.
Supplement use
MSM has been studied more extensively in relation to joint symptoms and exercise recovery than it has for human scalp-hair regrowth.
Hair interest
Its association with sulfur and structural proteins has led to interest in MSM as a supportive ingredient in multi-nutrient hair formulas.
Does MSM promote hair growth?
There is some limited research and considerable commercial interest in MSM for hair and nail appearance, but there is not strong clinical evidence showing that MSM reliably regrows thinning scalp hair.
Small studies and cosmetic research have suggested possible improvements in aspects of hair appearance or quality, but this is very different from proving that MSM treats androgenetic alopecia or reverses follicle miniaturisation.
It is therefore best viewed as a supportive nutritional ingredient rather than an established hair-growth treatment.
What makes MSM interesting
- It is an organosulfur compound.
- Sulfur is relevant to structural proteins.
- MSM is widely used in nutritional supplements.
- Some early research has explored hair and nail appearance.
- It can form part of a broader hair-support formula.
What hasn't been established
- That MSM regrows genetically lost hair.
- That it blocks DHT.
- That it activates dormant scalp follicles.
- That it stops telogen effluvium.
- That visible regrowth begins within weeks.
- That more MSM automatically produces thicker hair.
Does MSM strengthen keratin?
This is one of the most common explanations used to market MSM for hair.
Hair keratin contains high levels of the sulfur-containing amino acid cysteine. Disulfide bonds between cysteine residues contribute to the strength and structure of the hair fibre.
MSM also contains sulfur, but this does not mean MSM itself directly forms the disulfide bonds in growing hair or that supplementation automatically creates stronger strands.
MSM and keratin are connected more indirectly than many adverts imply.
Hair production requires adequate protein, amino acids, energy and micronutrients. Sulfur is part of that wider biology, but hair growth cannot be reduced to simply taking a sulfur-containing supplement.
The presence of sulfur gives MSM a plausible nutritional rationale, not proof of clinically significant hair regrowth.
Can MSM make hair grow faster within a few weeks?
Claims that MSM “activates hair cells” or produces noticeable regrowth within a matter of weeks are not well supported.
Scalp hair grows slowly, and changes in density depend on the underlying hair cycle. Even established approaches to hair loss are normally judged over months rather than days or a few weeks.
If a nutritional deficiency or poor overall intake is affecting hair, correcting the nutritional problem can be important. But MSM should not be presented as a fast-acting follicle switch.
How can MSM be taken or applied?
Capsules & tablets
MSM is commonly included in capsules, tablets and multi-ingredient nutritional supplements.
Powder
MSM powder can be mixed with drinks and is another common form used in general nutritional and joint-support products.
Topical products
MSM may also appear in cosmetic creams, sprays, serums or hair-care formulations, although topical use is not an established treatment for hair loss.
What are the wider uses of MSM?
MSM has been researched in several areas outside hair care, particularly in relation to joint discomfort and exercise-related symptoms.
However, it should not be described as something that treats rheumatoid arthritis, tendonitis or other inflammatory diseases.
There is a major difference between research showing a possible effect on symptoms and establishing a compound as a medical treatment for a disease.
Is MSM naturally found in food?
Small amounts of MSM can occur naturally in certain foods and drinks, although dietary exposure is generally much lower than the amounts used in concentrated supplements.
Foods reported to contain naturally occurring sulfur compounds include milk, some fruits and vegetables, grains, coffee and tea.
However, it is not necessary to build a diet around “MSM-rich foods” for healthy hair. Adequate protein, calories and a broad range of essential micronutrients are much more important nutritionally.
What about MSM with inositol and choline?
MSM, inositol and choline are all used in multi-ingredient nutritional formulas, but they perform different biological roles.
Choline is involved in phospholipid metabolism and cell-membrane structure, while inositol participates in cellular signalling and related processes.
MSM does not simply combine with choline and inositol in a supplement to “form phospholipids” that then create healthier follicles.
Their rationale within HR23+ is broader: each ingredient contributes a different nutritional or botanical component to the complete formula.
Three claims that go too far
“MSM activates new hair growth in weeks.”
There is not strong clinical evidence that MSM activates scalp follicles or produces significant visible regrowth within a few weeks.
“MSM sulfur directly strengthens keratin.”
Sulfur is important to keratin structure, but MSM supplementation should not be described as directly building stronger keratin bonds in human hair.
“MSM is a proven anti-hair-loss treatment.”
It isn't. MSM may be a useful supportive ingredient, but it has not been established as a treatment for androgenetic alopecia or other common forms of hair loss.
Is MSM safe?
MSM is commonly used in supplements and is generally tolerated by many people, but side effects can occur.
Digestive side effects are possible.
Reported effects can include nausea, diarrhoea, bloating or stomach discomfort in some users.
Side effects should not simply be dismissed as something that will always disappear with continued use. If a supplement causes persistent or significant symptoms, it should be stopped and appropriate advice sought.
Why is MSM included in HR23+®?
MSM is included in HR23+ as one component of its wider nutritional hair-support formula.
Its sulfur content and use within hair, skin and nail supplementation make it an interesting supportive ingredient, but HR23+ does not need to rely on MSM as a stand-alone hair-growth treatment.
An organosulfur compound
MSM contributes a sulfur-containing component to the wider HR23+ nutritional formula.
Different biological roles
These ingredients are included alongside MSM as separate components of the formula rather than as a combination claimed to manufacture new hair follicles.
A broader formulation
HR23+ combines MSM with selected vitamins, minerals and botanical ingredients for wider daily nutritional hair support.
Support rather than treatment
MSM is best viewed as one supportive ingredient within the complete formula, not as a proven cure for shedding or genetic hair loss.
MSM has a plausible hair-support role — but the evidence is still limited.
MSM is an interesting sulfur-containing compound and has become a popular ingredient in hair, skin and nail supplements.
Its relationship with sulfur and structural proteins gives it a sensible nutritional story, and some early research has explored possible cosmetic benefits.
What we do not have is strong evidence that MSM directly activates follicles, blocks hair loss or produces substantial scalp-hair regrowth.
Within HR23+, MSM makes more sense as one part of a broader nutritional formula rather than as the ingredient expected to do everything.
MSM. One part of a 23-ingredient formula.
HR23+® combines MSM with 22 other selected vitamins, minerals and botanical ingredients in one dedicated daily hair-support formula for men and women.
Explore HR23+®MSM and hair growth: FAQ
Does MSM make hair grow?
MSM is a sulfur-containing compound used in many hair, skin and nail supplements. Some limited research has explored possible cosmetic benefits, but strong evidence that MSM reliably increases scalp-hair growth is lacking.
Does MSM contain sulfur?
Yes. MSM is an organosulfur compound. This is one reason it is commonly associated with hair and keratin, although the relationship is more complex than simply converting MSM into new hair.
Does MSM strengthen keratin?
Sulfur-containing amino acids are important to keratin structure, but it has not been established that MSM supplementation directly strengthens keratin bonds in growing human hair.
Can MSM stop hair loss?
MSM is not an established treatment for androgenetic alopecia, telogen effluvium or other common forms of hair loss.
How quickly does MSM work for hair?
There is no well-established time frame because MSM has not been proven to produce predictable scalp-hair regrowth. Hair changes should generally be judged over months rather than expecting visible growth within a few weeks.
Can MSM cause side effects?
Some people report digestive symptoms such as nausea, diarrhoea, bloating or stomach discomfort. Persistent or significant symptoms should not simply be ignored.
Why is MSM included in HR23+®?
MSM is included as one component of HR23+'s broader 23-ingredient nutritional hair-support formula. It is used as a supportive organosulfur ingredient rather than as a stand-alone treatment for hair loss.
This article is for general information only and should not be considered medical advice. Persistent, sudden, severe or unexplained hair loss should be appropriately assessed. Individual responses to supplements vary, and concentrated ingredients may not be suitable for everybody.