100, because it offers more UV protection.
A lot of sunscreen
Usually $10
Depends on how much you put on
Well, natural sunscreen has many useful benefits that normal sunscreen does not have. A natural sunscreen for example can provide much vitamins and mineral that are beneficial for your skin in many ways. The regular sunscreen on the other hand can contain many ineffective chemicals and is not as effective as a natural sunscreen. http://www.kitchenstewardship.com/2010/07/20/natural-sunscreen-review-do-mineral-based-sunblocks-work-2/
Alot
Sunscreen in itself is not necessarily good for you- I mean, if you put it on and then stay inside all day, it won't do you any good. But if you're out in the sun a lot, sunscreen is a really good idea. Sunscreen protects your skin from the sun's UV rays which may be very harmful to your skin. The sun is very hot, and may give you a sunburn, heat rash, or even skin cancer if you are out too much without sunscreen. Sunscreen doesn't guarantee you WON'T get any of these, but it will help lesser the chances. Tip: ALWAYS WEAR SUNSCREEN!
It depends on where you actually are for the amount of sunscreen a person would use and how much skin they are exposing. For instance, if you're about to be exposed to a great about of sunlight, you would apply sunscreen to your entire body (or exposing skin) and even the face. If you lived some where cold and there's not that much sunlight, then it's best to apply it to you face, hand and arms.
For effective protection, it is recommended to apply about 1 ounce (30 milliliters) of sunscreen to cover the entire body.
For a week-long trip, it is recommended to pack at least one 8-ounce bottle of sunscreen to ensure adequate protection from the sun.
stay out of the sun as much as possible and always wear high spf sunscreen
Squeeze a small amount into your hand, don't squeeze out too much a little goes a long way. Then rub into your arms until the sunscreen is spread out evenly and there shouldn't be much, if any, white residue. Continue to apply sunscreen to your legs and abdomen; be sure to get your shoulders and the back of your neck. Now you will need someone's help to apply it on you back. Lastly take just a small amount of sunscreen and rub it around your face. Be sure to reapply sunscreen as needed, usually every hour or so.
To protect your skin effectively, you should apply about 1 ounce of sunscreen, which is equivalent to a shot glass amount, to cover your entire body.