As a general rule we would like the bottom lip to be one and a half times the size of the upper lip (or 40/60, upper to lower lip), though we can create other proportions, if the patient requests (a lip ratio of 1:1 is more popular in Latin America, and can create a beautiful, natural lip profile for many patients)
Nervous System Health : Maintains the health of nerve cells and supports brain function
doi: 10.1007/s00726-012-1361-4 38 LiuZXiaYZhangXLiuLTuSZhuWet al
Here's why that matters: Glutathione is your body's ultimate detoxifier, helping mop up acetaldehyde, the nasty byproduct of alcohol that's largely to blame for your pounding head and upset stomach
Why 1:1 Specifically Given the complementary-mechanisms framing, the natural design question is: should the ratio be 1:1, or should one component dominate