Will tretinoin damage Restylane and Radiesse fillers?

Topical tretinoin or retina-a should have no impact on your injectable filler. You might get some redness using the retina-a which is normal and some peeling but other than that your filler should be ok. 

Tretinoin is applied topically and does not affect any deep layers below the epidermis. So any type of fillers are not affected by tretinoin.

Tretinoin will not affect fillers which are injected into the skin. Using tretinoin will prevent superficial wrinkles and therefore is a must in anti aging skin care.