community Topical caffeine is a common ingredient in formulas to prevent hair loss and to induce hair regrowth. (What’s your take on this?)
The conversation discusses whether topical caffeine is effective for hair loss, with some users questioning its role due to its vasoconstrictive and vasodilative properties, while another suggests that temporary vasoconstriction might be beneficial by promoting angiogenesis. Specific treatments mentioned include caffeine shampoo, which one user believes is ineffective.