Acne cosmetica

Acne cosmetica
Classification and external resources
ICD-10	L70.8 (ILDS L70.834)
ICD-9	706.1

Acne cosmetica is a term referring to acne caused by or made worse by cosmetics.^[1]:240 The mechanism was presumably a chemically induced plugging of the pilosebaceous orifice. This was a significant problem for dermatologists in the 1970s and 1980s, but with the improved formulations produced by cosmetic chemists over the past thirty years, this is now a relatively rare diagnosis in daily practice.

The terms "non-comedogenic" and "non-acne(i)genic" appeared on moisturizers and other cosmetic compounds as re-formulations were introduced, sometimes associated with claims that the products were oil-free or water-based. Although early work produced lists of comedogenic chemicals in various strengths and vehicles, it became apparent that the actual comedogenicity of a product could not be predicted from its contents; rather the finished product itself needed to be use-tested.

The production of a low-grade folliculitis by some components of cosmetic products has led to misdiagnosis on occasion.

People may not attribute their reactions to their cosmetics at first, but may notice worsening symptoms after using certain face makeup, sunblock or lip products.

Reactions are more likely to occur if applied cosmetics are let to sit and are not stripped after use. ^[2]

See also

• List of cutaneous conditions

References

1. ^ Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. ISBN 1-4160-2999-0. 
2. ^ "Acne Cosmetica"

Follicular cysts

Epidermoid cyst · Trichilemmal cyst · Sebaceous cyst · Steatocystoma multiplex · Milia

Inflammation

Folliculitis (Folliculitis nares perforans, Tufted folliculitis) · Pseudofolliculitis barbae
Hidradenitis (Hidradenitis suppurativa, Recurrent palmoplantar hidradenitis, Neutrophilic eccrine hidradenitis)

Ungrouped

Acrokeratosis paraneoplastica of Bazex · Acroosteolysis · Bubble hair deformity · Disseminate and recurrent infundibulofolliculitis · Erosive pustular dermatitis of the scalp · Erythromelanosis follicularis faciei et colli · Hair casts · Hair follicle nevus · Intermittent hair–follicle dystrophy · Keratosis pilaris atropicans · Kinking hair · Koenen's tumor · Lichen planopilaris · Lichen spinulosus · Loose anagen syndrome · Menkes kinky hair syndrome · Monilethrix · Parakeratosis pustulosa · Pili (Pili annulati · Pili bifurcati · Pili multigemini · Pili pseudoannulati · Pili torti) · Pityriasis amiantacea · Plica neuropathica · Poliosis · Rubinstein–Taybi syndrome · Setleis syndrome · Traumatic anserine folliculosis · Trichomegaly · Trichomycosis axillaris · Trichorrhexis (Trichorrhexis invaginata · Trichorrhexis nodosa) · Trichostasis spinulosa · Uncombable hair syndrome · Wooly hair · Wooly hair nevus

Sweat glands

Eccrine	Miliaria (Colloid milium • Miliaria crystalline • Miliaria profunda • Miliaria pustulosa • Miliaria rubra • Occlusion miliaria • Postmiliarial hypohidrosis), Granulosis rubra nasi, Ross’ syndrome, Anhidrosis, Hyperhidrosis (Generalized, Gustatory, Palmoplantar)
Apocrine	Body odor, Chromhidrosis, Fox–Fordyce disease
Sebaceous	Sebaceous hyperplasia

M: SKA anat/phys/devp noco/cong/tumr, sysi/epon proc, drug(D10)