A313 is a topical vitamin A (retinoid) ointment commonly used for skin renewal.
It contains retinyl esters, which are gentler precursors of retinoic acid, helping improve skin texture, radiance, and clogged pores.

Key Components
Retinyl acetate, Retinyl propionate, Retinyl palmitate, PEG-400, PEG-400 monostearate, Polysorbate 60.

Indication
Dull or uneven skin texture.
Congested skin / clogged pores.
Fine lines (cosmetic).

How to use
Apply a pea-sized amount to clean, dry skin at night, 23 times per week.
Increase frequency as tolerated.
Use moisturizer after if needed.
Wear sunscreen daily.