Question

please help me ,, don't use handwriting .. i need unique answer don't copy and paste

please help me ,, don't use handwriting .. i need unique answer don't copy and paste

please help me ,, don't use handwriting .. i need unique answer don't copy and paste

1-What is the difference between sunblock and sunscreen cream?(3-5 sentences)

2-What is SPF? (3-5 sentences)

3-Which is better SPF30+ or 50+? (3-5 sentences)

Answer 1

1.

They both are meant to provide the protection from the UV rays. difference between a sunscreen and sunblock is that the sunscreen can be chemical or physical agent ( lotion, gel) but a sunblock is purely physical. The sunscreen absorbs the UV rays where as the sunblock donot permit the entry as it scatters and reflects. The sunscreen should be applied contionously on the skin within the short time period intervals where as the sunblock if kept as physical need not to be changed.

2.

The SPF is the sun protection factor. It mainly protects the person from the harmful UVB RAYS which causes the sun burn, cancer etc. Even though the UVA RAYS are harmful it donot account for that. Even though there are so many SPF available in the market the higher spf donot contribute much difference in the protection than from the lower spf .

3.

The SPF 30 protects 97% of the UVB RAYS whereas the SPF 50 protects 98%of the UVB RAYS thus as we consider there is no significant difference in the protection percentage. Even though they both protect from only UVB RAYS ,SPF 50 do not offer any protection from UVA RAYS thus by giving a misconception of higher protection. So there is no difference in using a higher SPF value.

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