I have seen many beauty seekers asking questions on the Q&A platform about whether they need to apply sunscreen after applying BB, CC and isolation, and the answer to this question is actually different for every beauty seeker. 1.Can isolation cream replace sunscreen? There is no strict definition of sunscreen and isolation cream, nor is there a strict difference between them, only that they differ in formulation and function. Generally speaking, the main role of sunscreen is to provide adequate sun protection for the skin, with enough choices of sun protection index (SPF and PA) and dosage form. The main function of barrier creams is to isolate the skin from the irritation of some external factors, such as makeup, airborne turbidity, and UV rays. Most barrier creams have some sun protection ingredients, just to make their texture more refreshing and comfortable, and generally do not have a high sun protection factor. The choice of sunscreen or barrier cream depends on the individual needs of the candidate. If you need more stringent sun protection, you need to use sunscreen and remember to reapply it on time in order to be free from the sun’s damage. If it is only daily protection, the texture of isolation cream is more affinity, is a good choice. 2.Can BB cream and CC cream with sunscreen replace sunscreen? BB cream is similar to a kind of foundation with concealing effect, which is continuously improved by the cosmetic industry and evolved into a single product that collects concealing, isolating, sunscreen, face repair and primer functions. The CC cream can be considered as a new generation on this basis, claiming to collect all the advantages of BB cream, but also special added whitening ingredients, multi-effect vitamin C, etc., external modification, internal whitening. Because each function has a little or two, BB cream and CC cream in the professional refinement of the field: sun protection than sunscreen, concealing effect is not as good as foundation, isolation role also seems vague. As for their skin care functions, they can only be described as icing on the cake and are not a unique skin care product. Their strength lies in their comprehensive functionality, but I don’t think they can replace professional sunscreen, especially for outdoor workers.