For people with Acne
HelloSkin’s expert were unable to find any scientific data on the use of Hollywood Repairing Day Cream in people with acne. However, the product contains salicylic acid, vitamin A, tea tree oil, and lactic acid which are all believed to have some benefit when used on acne lesions.
Although the clinical evidence supporting salicylic acid is generally limited (1), salicylic acid is thought to be able to limit clogging of the pores. Additionally, a very high concentration of salicylic acid (30%) in an exfoliator was shown to reduce sebum secretion. Excess sebum production is one of the main factors in the acne pathogenesis (2). Salicylic acids can cause mild irritation (3), so be aware of how your skin reacts after using the product.
The product also contains Vitamin A (known as retinol), which is converted into retinoic acid by oxidation (in lower concentrations than the prescriptible) (4). Retinoids are well-known and effective for all acne lesions (1) through various mechanism including comedolysis and inhibition of inflammation (5). Although topical retinoids are very effective they also can cause local skin irritation, and even initially exacerbate acne, what is termed a ‘retinoid flare’ that may persist for several weeks (5). However, in cosmetic products such as this one, the concentration is considerably lower.
Furthermore, the product also contains tea tree-oil which has been suggested to target the bacteria associated with acne (6), and lactic acid, which belongs to a group of acids called alpha hydroxy acids. These are believed to limit inflammation and remove dead skin cells, thereby exerting their comedolytic effect through chemical exfoliators (7).
- J Am Acad Dermatol. 2016 May;74(5):945-73
- Br J Dermatol. 2015 Jul;172 Suppl 1:13-9
- Clin Ther. 1992 Mar-Apr;14(2):247-53
- Dermatol Ther. 2006 Sep-Oct;19(5):289-96
- 5 J Clin Dermatol. 2003;4(7):473-92)5
- Indian J Dermatol Venereol Leprol. 2007 Jan-Feb;73(1):22-5
- Clin Cosmet Investig Dermatol. 2010 Nov 24;3:135-42