Oral minoxidil may cause dry skin and dark eye bags but doesn't significantly age the skin. Topical minoxidil is toxic to cats, and some users prefer finasteride.
Caffeine shampoos show comparable results to Minoxidil and may enhance its effects when used together. Caffeine can be detected in the scalp up to 24 hours after a 2-minute application, making it an affordable treatment option.
Oral dutasteride is the most effective for hair regrowth, followed by oral finasteride and minoxidil. Topical finasteride combined with minoxidil is recommended for those avoiding systemic DHT reduction.
Oral minoxidil can boost hair growth but may cause side effects like heart palpitations and increased body hair. Many prefer topical minoxidil due to fewer side effects.