Question 307: How can I tell if marketing claims are based on known facts, biased opinions, or pure nonsense?
Question 308: The ingredient called urea has revolutionized footcare products and hand creams. Are higher concentrations better, or is this like sunscreen. You told use SPF’s above 50 are no better.
Question 309: What about the new kind of UV gel in a squeeze tube and why it is so different from the others.