My hair has no damage whatsoever and it is very healthy. I have never used iron or straightener except for once a year for special occasions. I wash my hair every day in the morning and I do not smoke. I have never dyed my hair before. The hair is already cut to around 17-18 inches long with 1.5 inches thickness by a professional in hair salon. I prefer payment through PayPal or Venmo and shipping through Royal Mail Recorded.