Can I Remove Derma Shield to Apply Acne Treatment?
Derma Shield allows your skin to breath and perspire normally so it is unusual to need to remove the protective shield that would only come off as your skin sheds naturally. Derma Shield also contains Aloe vera, which has a natural antibacterial action. Anecdotal evidence from acne sufferers indicates that this is sometime helpful in controlling some elements of their skin problem.
Because of the shield mentioned above and its ability to resist alcohol solutions it is unlikely that any astringent would easily penetrate the breathing protective layer on your skin. It may be worth trying Derma Shield on one area of your skin without using Clearasil and noting the difference.
https://dermashield.co.uk/faq/can-i-remove-derma-shield-to-apply-acne-treatment/