Since you have been using Tugain 5% Minoxidil for 5 months, you may see gradual hair regrowth over time. Switching to Tugain 10% is sometimes considered to improve results, but higher concentrations may increase the risk of scalp irritation or sensitivity. Its effectiveness also depends on factors such as the cause of hair loss, overall health, and response to the current treatment. It is best to consult a dermatologist or trichologist before increasing the concentration, so they can evaluate your progress, confirm suitability, and provide guidance on safe and effective use.