Hey mama, I haven't personally tried Celeteque during breastfeeding kaya hindi ako sure, pero a few of us in our mom group stick to gentler options lang talaga when we're nursing, mas safe kasi for baby, kahit minimal lang ang absorption. Since your OB said to check the ingredients, that's actually good advice, pero honestly, if acne's bothering you right now, might be worth asking your OB directly which specific products (even from other brands) are safest for lactation, para hindi ka na mag-guess. I've heard good things about Mama's Choice Face Wash and Face Moisturiser from other breastfeeding moms because they're specifically formulated to be safe while nursing, and they actually work on pregnancy and postpartum breakouts without the worry! Hope you find something na works for you, mama!