Comedogenic cosmetic ingredients tend to cause blackheads by blocking the pores of the skin. Synthetic and natural ingredients may be comedogenic.
Silicones have become ubiquitous in beauty products. Silicones Trap Debris in Your Pores. Like plastic wrap, silicones form a barrier on top of your skin. That barrier can lock in moisture, yes, but it can also trap dirt, sweat, bacteria, sebum, dead skin cells and other debris along with it.
Prolonged exposure to oil, dead skin and bacteria underneath the semi-occlusive seal of silicones can lead to increased breakouts. If you are acne-prone, I consider silicones among the most important ingredients to avoid—maybe even THE most important.
Silicones can also be a culprit in under-the-skin clogs (congestion), even if you don't develop full-blown acne.
Non-comedogenic oils help keep dry skin supple and oily skin acne-free. That's because non-comedogenic oils don't clog pores.
For acne prone skin, sunblock should contain ingredients that are non-comedogenic.
Love Sun Body Sunscreens are the first and only sunscreens in the U.S. certified by Ecocert Cosmos Natural (all ingredients are from 100% natural plants and 100% natural minerals, no synthetic ingredients, no synthetic UV filters and no synthetic inactive ingredients). All Love Sun Body Formulas are Reef Safe, 80-minute water resistant, hypoallergenic, non-comedogenic, vegan, gluten free, with no eye-stinging ingredients.