Question 235: Are there differences between professional and retail nail products?
Question 236: I use a high quality certified oil, which contains bergamot. Recently a client said that bergamot could leave stains on the skin, when exposed to UV. Would you know if that is true?
Question 237: Is it possible that for air or sunlight get into a product and reduce the effectiveness of the vitamin E by destroying it, or can it escape from the bottle? I know sunlight can affect the color, but can it break down the Vitamin E and reduce effectiveness of the product?
Q238: I know cyanoacrylates are called by the name resins and adhesives, but are they also classified as monomers?