[1] Signs and symptoms include a dense group of similar sized closed comedones and scattered small bumps, typically over the skin where the cosmetic has been applied.
[1] Signs and symptoms include a dense group of similar sized closed comedones and scattered small bumps, typically over the skin where the cosmetic has been applied.
This became a significant problem for dermatologists in the 1970s and 1980s, but with the improved formulations produced by cosmetic chemists in the decades since[update], a diagnosis of acne cosmetica has become relatively rare in dermatological practice.
The terms "non-comedogenic" and "non-acne(i)genic" appeared on moisturizers and other cosmetic compounds as manufacturers introduced re-formulations—sometimes associated with claims that the products were "oil-free" or "water-based".
People may not attribute skin reactions to their cosmetics at first, but may notice worsening symptoms after using certain face makeup, sunblock or lip products.