That said, there are products that don’t have FDA approval or clearance, but may help prevent hair loss. For example, shampoos with ketoconazole, a chemical with anti-DHT properties, is widely used to treat fungal infections but has become popular among consumers as a hair loss treatment. It makes sense — research shows that ketoconazole actually has beneficial effects on hair growth (especially for those with seborrheic dermatitis).
Our other recommendation is the HairMax Ultima 12 LaserComb. The comb uses low-level lasers to stimulate hair follicles and modulate dihydrotestosterone (DHT) — a hormone that causes the most common type of hair loss. While it sounds like something from a sci-fi movie, the treatment works, and the dermatologists we consulted reported that their patients saw thicker and longer hair when combined with our top pick. The only catch: The comb isn’t as effective as minoxidil treatments, and at nearly $400, it’s a much bigger investment. Still, it’s the best option if you’re looking for a non-invasive, non-chemical treatment.

As everyone ages, hair follicles begin to shrink, leading to thinning hair (or loss of hair density). Unlike hair loss shampoos or hair thickening products that temporarily plump hair from the outside, Rogaine 2% Minoxidil Solution penetrates into the scalp to reactivate shrunken hair follicles, allowing for new fuller, younger-looking hair to regrow. Rogaine is clinically proven to help regrow hair. No topical treatment works faster to grow fuller hair than Rogaine.
According to Men’s Fitness, Minoxidil will help slow the hair loss process, preserve the hair you have, and regrow hair more quickly. The six month supply of unscented topical solution is clinically proven to help regrow hair and revitalize hair follicles. The easy-to-use application can be used once daily. Simply apply the solution along the scalp using the dropper.

The truth is, the amount of propylene glycol in hair loss treatments is not likely to cause any real harm and the FDA has given the chemical approval for many uses. But even though it is safe, we wanted to ensure that our top picks would be as comfortable to use as possible. So when Dr. Khadavi told us that “a third of my patients get irritated from minoxidil products because of propylene glycol,” we decided to cut any treatments with it. In any case, it’s the minoxidil that helps curb hair loss and not the propylene glycol.
3. Scalp tonic. Serums with peptides or procyanidins (a class of antioxidants) such as niacinamide can help support overall scalp health and reduce inflammation, which is a major component of hair loss, says New York City dermatologist Doris Day. Try René Furterer Triphasic Progressive Concentrated Serum ($82), Julien Farel Magnifique Delay the Gray Hair & Scalp Serum ($135), or Day’s own Rapid Regrowth Serum ($55) once daily before massaging a minoxidil product into the scalp (there’s no need to wait for it to dry in between). “In addition to being anti-inflammatory,” Day says, “scalp tonics help minoxidil penetrate the scalp better and can minimize potential irritation from it.”
1. Collagen powder. Preliminary studies suggest that marine-sourced collagen may stimulate hair growth, says New York City dermatologist Yoon-Soo Cindy Bae. Though more research is needed, participants in studies reported thicker hair after three to six months of daily use. Crushed Tonic Original Powder ($105) easily mixes into coffee, tea, and water.
For example, if your hair is thinning because you’ve recently started a new medication or a diet, your approach might be to take an oral supplement or use a laser light device. But if you have hair loss from psoriasis or chemical treatments, you might try a new shampoo and invest in a moisturizing scalp treatment. Throwing everything possible at the problem might not be the most effective method.

George Cotserelis, MD, is director of the University of Pennsylvania's Hair and Scalp Clinic. He agrees that there's no evidence these alternative hair loss treatments have any effect. "If any of it did work," he says, "I'd be very worried about using that product. The fact that it’s working would mean it's doing something to the testosterone and could be having adverse effects."
However, ketoconazole is still not FDA approved for hair loss treatment, which means it cannot be endorsed or marketed as such. Put simply, ketoconazole likely curbs hair loss, but additional research is needed for the FDA to give it approval. While it is safe to use as a supplement to our top picks, we wanted to recommend products with as much scientific backing as possible. So, we stuck with FDA approved minoxidil or FDA cleared laser treatments. But we’ll keep a close eye on products like ketoconazole shampoos and update as new research appears.
What's to know about alopecia areata? Alopecia areata is an autoimmune disorder that usually results in unpredictable, patchy hair loss. Approximately 7 million people in the U.S. have alopecia areata, and it can affect anyone of any age or gender. There is no cure for alopecia areata although some treatments are available to help hair regrow more quickly. Read now
Warnings For external use only Flammable: Keep away from fire or flame Do not use if your degree of hair loss is different than that shown on the side of this carton, because this product may not work for you you have no family history of hair loss your hair loss is sudden and/or patchy your hair loss is associated with childbirth you do not know the reason for your hair loss you are under 18 years of age. Do not use on babies and children. your scalp is red, inflamed, infected, irritated, or painful. you use other medicines on the scalp.

“I think their effectiveness is not as significant as finasteride or minoxidil,” says Dr. Wolfeld, “however, it’s something that can be used quite easily by patients at home. If they use it two or three times a week, I tell them it can help to thicken their hair.” Results can take up to 18 months to show up, so Dr. Wolfeld stresses that patience is a virtue.

Testosterone replacement is becoming popular for men. Cotsarelis warns that this may accelerate hair loss. Propecia might help -- but because it prevents testosterone breakdown, it might affect the dose of male hormone replacement therapy. Cotsarelis warns men taking both Propecia and testosterone replacement to make sure their doctor carefully monitors their testosterone levels. 

"Despite some of the claims, a shampoo or conditioner won’t be able to stop or slow hair loss, nor help with a receding hairline or thicken hair that’s becoming thinner," says trichologist Anabel Kingsley from The Philip Kingsley Trichology Clinic in London. "At best, a thickening shampoo will make hair temporarily thicker for a short period of time, but they certainly won’t help with hair loss or thinning."

I am a 30 year old woman, after my second child, I noticed that my hair was thinning on the top of my head, I had read it was normal for hair to thin and to loose hair while breast feeding and all that, but my daughter is now 18 months and did not see my hair come back to how it used to, so I decided to try this product. I have been using it for about 22 days and I do see the difference, it is not very thick as it used to but I hope with time using the product it will get better. I also see some hair growth, so far so good!! BTW, you need to apply it twice a day, it comes on liquid form and it is very easy to use.

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Hair transplants will likely lead to better results in the long run (you are introducing new hairs to the balding areas), but you’ll still need to use minoxidil or finasteride after surgery to maintain the results. Like all hair loss treatments, hair transplants are best when combined with other methods, and you’ll want to speak with your doctor to see what combination is best for you.
That meant new products like Hims and Keeps were out.Hims and Keeps are relatively new companies that allow you to set up a subscription for hair loss treatments. Both offer finasteride (after an online consultation with a doctor) or 5 percent minoxidil. However, their minoxidil solutions contain propylene glycol, so we cut them from consideration.
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