I utilize Tretinoin Gel 0.1%, which is likely the most potent concentration available in the market. Initially, I began with Retino A, which has a concentration of 0.05% (tretinoin cream), and have been using it for approximately two years - first with the lower concentration for 15 months, and then with the higher concentration. I take a break during holiday months since tretinoin requires caution, particularly during summer. Additionally, I consistently use a powerful sunscreen throughout the year while using tretinoin.
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