Verbatim response from Claude
Oral vs. Topical Minoxidil for Hair Loss
The Short Answer
Oral minoxidil generally works better for most people, but comes with more risk.
Oral Minoxidil
Works better because:
- Higher systemic absorption reaches hair follicles more consistently
- Studies show superior regrowth, especially for diffuse thinning
- Low-dose (1.25–2.5mg) is increasingly popular off-label
Recommended brands:
- Generic finasteride/minoxidil from Keeps, Hims, or Ro (subscription services with doctor oversight)
- Generic oral minoxidil through your regular doctor is very affordable (~$10-15/month)
Topical Minoxidil
Still effective and safer for:
- People concerned about systemic side effects
- Women (lower doses)
- Those just starting treatment
Recommended brands:
- Rogaine (the original, well-studied)
- Kirkland Signature (Costco) – same formula, much cheaper
- Hims/Keeps topical formulas with added ingredients
Key Considerations
- Oral side effects can include fluid retention, low blood pressure, unwanted body hair
- Always consult a doctor before starting oral minoxidil
- Combining both isn't typically necessary
Bottom line: Start topical if you want lower risk; consider oral if topical hasn't worked after 6–12 months.