Guys, I need an advice from someone experienced

>be me 29
>have normal body 6'0, 80 kilos, lean
>go to gym 5x a week, so fit

But I got a major problem - my face looks really young (not a babyface, but a noticable lack of testosterone during puberty. Imagine something like leonardo dicaprio's 16 year old baby face on my nearly 30 y.o. body)

So my question - what substances can actually affect my facial appearance?
Being extremely lean doesn't seem to be an option, because it won't make my jaw bigger.
I've contemplated either jaw implants or growth hormone.
Roids doesn't seem to affect face much, except minor muscle growth during the cycle..

advice pls?
I just want to look my age, not lag 10 years behind.