What would be the best procedure for a 24 year old male who's wanted a more defined jawline/chin. I know for a fact this is genetic, my mom has the same profile view as me. From the front my jaw looks good! But, from the side it looks like one slightly curved slope, chin to neck. Instead of a beautiful angle. Thanks in advance for the advice!
You would have to be seen in person to determine what might be best for you. Sometimes a chin implant can help. Sometimes a liposuction of the neck can help. Sometimes release of some of the muscles in the neck may help. Sometimes facial fillers can help.
In a young person, a lack of an angle to the neck on profile is usually due to genetic fat under the chin. If the projection of your chin on profile view is good, and there is a genetic fat deposit, then liposuction of the fat (or injection of a fat dissolver like Kybella) might do the trick. If your chin lacks projection, then some sort of chin augmentation might be needed. Please use the Find-a-Surgeon link to locate a board-certified plastic surgeon in your area who can examine you in person and offer you options for treatment.
Thank you for sharing your excellent question. The least invasive method to sculpt and masculinize your jaw would be through the additional of dermal fillers. This can be done to improve angles and projection of your tissues to afford you a look more similar to what you are seeking. Other options include placement of a solid silicone chin implant. Hope this helps.