From the Research
To treat thinning hair in females, start with minoxidil 5% foam applied to the scalp once daily, which is the most effective and recently approved treatment that stimulates hair follicles and prolongs the growth phase. This recommendation is based on the most recent and highest quality study available, which demonstrated the efficacy of 5% minoxidil foam for the treatment of female pattern hair loss (FPHL) 1. The study showed a significant change from baseline in the target area hair count compared to placebo, and established noninferiority of the 5% foam formulation compared to twice daily 2% minoxidil solution.
Some key points to consider when treating thinning hair in females include:
- Ensuring adequate iron, vitamin D, zinc, and biotin through diet or supplements, particularly if deficiencies are confirmed by blood tests
- Using gentle, volumizing shampoos and avoiding heat styling, tight hairstyles, and harsh chemical treatments
- Addressing underlying causes like thyroid disorders, PCOS, or autoimmune conditions, as treating these can significantly improve hair density
- Considering low-level laser therapy devices or platelet-rich plasma injections as additional treatment options
- Being aware that results typically take 3-6 months to become noticeable, and consistent treatment is necessary to maintain improvements.
It's also important to note that while other treatments like spironolactone, finasteride, and dutasteride may be considered, the evidence for their effectiveness is limited and they may have potential side effects 2. Therefore, minoxidil 5% foam remains the first-line treatment for FPHL due to its proven efficacy and safety profile.