Addressing lower facial heaviness/skin laxity (photo)

masseter botox may actually make this worse because you will have less posterior support to lift up the lower face, thus potentially resulting in more laxity. The biggest thing that I see/suspect is that you may actually need MORE lower jaw support. I would think about possibly chin augmentation (implant or filler) and/or posterior jaw filler (don't know for sure without seeing side photos).

Hello, this is Dr. Hong from Fresh Clinic in Seoul, South Korea.
You’ve mentioned two main concerns: 1. Heaviness, and 2. Skin laxity.
Heaviness typically results from weight gain or muscle ptosis (sagging of muscles).Skin laxity can be caused by factors like poor hydration, natural aging, and other lifestyle-related issues.Regarding masseter Botox, I do not recommend it in your case. Reducing the masseter muscles could cause your cheeks to sag and create a 'bulldog' appearance, as the bulkier cheek tissue may descend towards the lower face.
If the heaviness is due to weight gain or excess fat, non-surgical weight loss or surgical options like liposuction may be viable solutions.
For skin laxity, the first step is evaluating your habits (supplements, diet, physical activity, hydration, and skincare routine). While treatments like skin boosters (e.g., Rejuran, but not PRP) combined with skin Botox can provide temporary improvement, long-lasting results are best achieved by maintaining a healthy lifestyle and consistent skincare.
Hope this information will help ^^