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The products that you use are derived from snail. Snail gel has peptides in them that are claimed to have anti-aging
and repair properties. But these are not US FDA approved products. We dermatologists usually won't recommend these products as there are no scientific evidence of benefits to back them.
You seem to be having Acne. Go for a proper treatment of Acne and consult a dermatologist
for the same. You can use an antibiotic gel like clindamycin
in the morning and Benzoyl peroxide
2.5 % or Adapalene
0.1% at night. Use a face wash containing 1 or 2 % salicylic acid
twice a day. Procedures like comedone extraction will help to clear a lot of blackheads, so that the gels work faster.
You stay in a hot and sunny area, so apply a sunscreen every day morning preferably a gel based sunscreen not cream or lotion. Gel and water based products are recommended as they do not block the pores and cause new pimples. Reapply sunscreen every two hours if you continue to be outdoors.
Avoid excess milk and milk products like cheese, chocolates, sweets, sugary foods and drinks. Eat a lot of fruits rich in vitamin A
Hope this helped