[header] How to reduce appearance of stretch marks during puberty [title] Moisturize your skin. [step] Stretch marks are caused by a breakdown in the production of collagen, which makes up the connective tissues of your skin. Keeping your skin moisturized may help reduce the appearance of your stretch marks. 
[substeps] You may want to use a richer moisturizing cream, such as cocoa butter. Other options may have special ingredients such as collagen and elastin that can boost the effects of the moisturizer on your skin.