Psoria gold for sure helps. it definitely gets inflammation down...it being a collagen builder i am not sure.
Honestly, the best thing for collagen is diet. Lots of fruits means lots of vitamin c, and lots of vitamin c means collagen production. You can try and supplement with vitamin c as I've said, but its better when it directly comes from food. I tried something called "Great Lakes Gelatin" that someone on the rosacea forum with laser damage recommended (since i cannot cook bone broth), it does plump my skin up...But the problem with it is that i become an oil slick and i break out. But if you aren't really prone to acne you can go for that...but don't blame me if you get pimples.
Everyone on this forum has different things that work, and unfortunately some have not found that one thing yet...or even worse, there is nothing. Whether it be fillers, fat grafts, psoria gold, diet, enzymes, exercise, cerave, not putting ANYTHING on their skin, etc, everyone tries something.
For me, i can definitely say a clean diet really helps, as does exercising and sweating. The psoriagold stopped helping me at around month 7, and i found out about it at month 5 after ipl damage. Really sucks that i could have used it sooner.
Like you Json, I am a young guy too. And as evidence has showed here on the board, there is hope for some of us young ones...And i know since your face is skinny you will be hesitant to drop foods for a clean diet...I've been there done that. i've had that feeling. But even with a clean diet low on carbs, you can still maintain your regular weight. My face was very skinny at around 7 months out but i did notice it has gotten a tad better (not great by any means) now at month 15. More round and less angular. Hope for improvement is the only thing that keeps me going. It's sad because a lot of this time and dedication could be devoted to my academics. But i guess thats life.