Reddit mentions of Palmer's Cocoa Butter Formula Cream, Value Pack, 13.25 oz.

Hair: ORS Hair lotion

Body: Nivea Body Lotion or Palmers Coco Butter

Face: Cerave cream and for the shaving areas Skin tight

I had a similar but more severe problem going through middle school. You can try mederma or scar creams if the scars are light (they didn't work for mine), but ultimately the only things that helped for me were lotions and creams with Vitamin E and time.
I used something similar to this

Cocoa butter works WONDERS. It's been suggested for a long time for birth stretch marks etc.

Something like this works:

http://www.amazon.com/Butter-Formula-Vitamin-Unisex-Palmers/dp/B001UHSVOY/ref=sr_1_1?ie=UTF8&qid=1317942686&sr=8-1

I'm not entirely sure how well it will work for tightening up skin, so you may need to do more research on that.

Also keep in mind that you've lost A LOT of weight (congratulations!) but with that, you've had a lot more years of your skin stretching out than being toned. Just stay at it, try to build muscle and your skin will go back to normal.

You're also only 19. Give it a while! I know it's hard with the illusion of not "being sexy", but don't get discouraged!

Thanks! I've used 2 things and I haven't been all that good about using either. Meaning that I haven't come anywhere close to applying them every day/night, which is what is recommended. I've got this stuff called Siligen that I put on at night, but you can only get it from a Dr. (I got it from my plastic surgeon that fixed my nose). I think it works well, but I also had been using Palmer's Cocoa Butter Formula - Advanced Scar Serum which is available over the counter. Really, I feel like anything with SPF and vitamin E can be marketed as helping heal scars. And it's true. It generally works. It kind of depends on where the scar is though. My forehead has faded much better than the bridge of my nose.

I smashed my face last year when I fell down a mountain. Thanks to the following, my face is back to the exact same with the exception of a teeny scar. Mederma, a tad expensive due to SPF but worth it cuz it was my goddamn face, triple antibiotic ointment linked here but cheaper when purchased as a generic, and Cocoa butter with vitamin E, also available in Walmart/Target places for half the price as listed here. Basically what you're looking for is lotions with vitamin E. I've had luck looking in the "ethnic" hair/lotion/body products section, and there's a whole variety of oils and lotions and rubs. Personally, my favorite is this one and it's usually $2 in store. Bio Oil can be a bit expensive, but a great and comparable product is Africa's Best Moroccan oil, or generic Baby Oil. Again, most of these products are available at Walmart/Target for a fraction of the price. They're all fairly pricey online because of the weight/shipping prices, despite it being shipped via Prime.