Would Rivicol be effective for slightly sunken temple volume?

When I was younger, I used to wear my hair with bangs, but after getting a job, I pulled them back and either tied them in a ponytail or kept them long and straight. However, something bothers me every time I look in the mirror is the volume at my temples.

I bet people with pretty hairlines wouldn't understand this concern haha.

Since the line connecting my forehead, temples, and cheekbones isn't pretty, tying my hair up really highlights those flaws. So I've been letting a few stray strands down to cover them up, but this summer I want to stop worrying about that and just wear a cool ponytail, so I've made a decision! I'm getting a collagen treatment to add volume to my temples.

I considered fillers, but since the temples are near the eyes, I wanted to avoid fillers or Botox if possible.

While browsing the Maypure website, I came across a post introducing Revicol as a collagen booster. After reviewing its features, I like the advantage of providing immediate and long-lasting collagen effects while minimizing stress on the skin. Will Revicol show a significant effect on volumizing my sunken temples? If there are other treatments that would be beneficial to combine with Revicol for more dramatic results, I would like to try them as well.

I would like to know if there is any discomfort after the Revicol procedure, how many sessions are required to see visible results, and how long the effects typically last.