Each tca brand is different. Besides after a few months the strength decreases. Sometimes scabs don't appear even with frosting. With my tca 50% I have to put 2/3 layers. If u moisturize too much your skin, scabs don't appear but only a localized peel. Is it better a tca cross with scabs? I think nobody has an objective answer. Wait a month if this is your first try. Good luck!