Is this good for stretch marks?

I didn't try it on stretch marks. I hit my head on a door and my glasses skinned my nose badly. It left a bad reddish scar on my nose. This covered it well. I also had a bad scar for nearly 10 years on my arm from a dog scratch. Every time I lift something heavy my arm gets really purplish and it looks like I freshly injured it. I put this on my arm and it not only covered the scar but helped heal it over better. I believe it will cover stretch marks.

i am fair and blond what shadevfor me

Fair nude gave very little color and fair ivory gave me a little hint of color. I am a very pale redhead and wanted to look natural. I was very pleased with fair ivory and how it evened out my skin tone and gave me a little color.

Mine smudged all over my clothes everything i tried on an everything i touch i left it make up 2 jars of setting powder what did i do wrong?

I’m not sure. I’ve had good luck in winter, not great in the summer months. Try putting it on lightly and put the setting powder on with a makeup brush soon after. Wait awhile before putting your clothes on until it’s good and dry. Hope that helps.

I wear shade “stromboli” in nars radiant longwear foundation. which shade of dermablend should i buy?

I found it very difficult to get an online match! I'm usually tanner this time of year but because of virus haven't been outside. I'm not much help because I had to return it! Sorry.