How do I know if the information I read about trilastin(sr) the stretch mark remover cream is true?

It should be some what true, otherwise the maker of the product could get sued.

Some manufacturers are making false claim that their products work or they lie about the ingredients in their products, and the FDA has no control over the labels. If you're unsure which skin care products are right for you, consult your dermatologist.

Hey ! I don't think Trialastin sr works the same way for everyone, I think everything depends on the person. Everywhere I go I find different answers, some claim that it works, some others claim that it doesn't. Well it does work for me.
Believe me I thought it was a scam when I saw the different answers but it is not. I'm 18 years old and I have had stretch marks for over 5 years, so since the age of 13, all over my arms and I have tried skin derma pro, shea butter, cocoa butter, french creams, and that thingy called Bio oil, bunch of liars, all of them!!
I have been using trilastin sr for barely 5 days now and I thought maybe I was seeing things but it wasn't a dream, my stretch marks are fading already!! THey are less visible than they used to be 5 days ago!! But one thing you must know, my stretch marks are young they have darkened yet and I have a dark skin, so I'm black!! So I think it gives different results for everyone. I'm not sure if it will go completely, I have to wait again!! So maybe u should try one tube and see if it works and if t doesn't sennd it back to them, they will refund your money I think, I'm not sure I haven't sent them back anything yet!!
Best of luck