Congratulations on taking the time to do research; this is a great first step. Please also read Dr. Peter Johnson's answer--each of us should consider those steps for women who express concerns such as yours BEFORE offering breast implants.But for the mature, well-adjusted, informed young woman who wants breast implants, this is still the best way to obtain larger breasts. (The rest--attitude, self-esteem, confidence--is up to you!)But I do want to clear up one misconception that many of my colleagues erroneously promote in their responses (here and in other answers). At age 18 you can certainly have silicone gel breast implants! They are perfectly legal for use in the well-informed woman who requests their use. Use of silicone gel implants in a woman age 18-22 would be considered "off-label" use, just as Botox use for forehead frown lines is perfectly legal, done all the time, but still considered off-label use, since the FDA has not approved Botox for the treatment of forehead lines (yet). But Botox is a safe and FDA-approved pharmaceutical that can be utilized by individual physicians in any way felt appropriate for their informed and consenting patients. The same is true for use of silicone gel implants in a woman under age 22!Please continue your research and see one or more ABPS-certified plastic surgeons. Be careful about "cosmetic surgeons" who may have little or no training in plastic surgery and receive their "board certification" from bogus boards or Board other than the American Board of Plastic Surgery. Click on the web reference link below for more information. Best wishes! Dr. Tholen