I wish someone had forced me to start with 0.5ml. My first injector convinced me that 1ml was 'standard' because she wanted the sale. Result: I got that horrible mustache shadow from filler migrating upward. Had to get it dissolved (painful and expensive) and start over. When I researched best lip augmentation method for thin lips, every experienced tech said the same thing: build gradually. Second time I did 0.5ml, waited 6 weeks, then added another 0.3ml. My lips look full but natural and no migration. It's not a race. Take your time.