Uploaded August 2026 | Updated September 2026, 2 weeks ago
Some treatments have solid evidence behind them while others contribute to MORE shedding or breakage.
A few important nuances:
🟢 5% topical minoxidil has some of the strongest evidence for stimulating hair growth.
🟢 Red light therapy may help support hair density when you’re using an appropriate wavelength/device consistently.
🟢 Peptide serums are promising, but the evidence varies A LOT depending on the specific peptides/formulation.
🟡 Biotin generally won’t improve hair growth unless you’re actually deficient.
🟡 Rosemary oil gets a ton of hype, but the evidence is still limited compared with established treatments like minoxidil.
🔴 Tight hairstyles + excessive heat can cause breakage and, over time, traction alopecia.
🔴 Rapid weight loss, illness, major stress, or inadequate nutrition can trigger telogen effluvium. This is why some people notice increased shedding while losing weight, including during GLP-1 treatment.
And remember: hair loss is not one diagnosis. The best treatment depends on WHY you’re losing hair in the first place!!
Some treatments have solid evidence behind them while others contribute to MORE shedding or breakage.
A few important nuances:
🟢 5% topical minoxidil has some of the strongest evidence for stimulating hair growth.
🟢 Red light therapy may help support hair density when you’re using an appropriate wavelength/device consistently.
🟢 Peptide serums are promising, but the evidence varies A LOT depending on the specific peptides/formulation.
🟡 Biotin generally won’t improve hair growth unless you’re actually deficient.
🟡 Rosemary oil gets a ton of hype, but the evidence is still limited compared with established treatments like minoxidil.
🔴 Tight hairstyles + excessive heat can cause breakage and, over time, traction alopecia.
🔴 Rapid weight loss, illness, major stress, or inadequate nutrition can trigger telogen effluvium. This is why some people notice increased shedding while losing weight, including during GLP-1 treatment.
And remember: hair loss is not one diagnosis. The best treatment depends on WHY you’re losing hair in the first place!!
