Botox does not cause muscle atrophy, hollow out the face, or accelerate the skin aging process.

noli's read

Scientific literature, notably systematic reviews published in aesthetic dermatology journals, indicates that botulinum toxin acts by temporarily inhibiting the release of acetylcholine, inducing reversible muscle relaxation. Concerns regarding permanent atrophy are not validated by clinical studies; the muscle regains its function once the effect dissipates. It is noted in some clinical observations, however, that prolonged and excessive use could theoretically alter facial dynamics, but this is a matter of injection technique rather than a biological inevitability. The idea that Botox accelerates aging is considered unfounded, with several observational studies even suggesting a preventive effect on the formation of static wrinkles by placing the facial muscles at rest. It is important to distinguish the sought-after relaxing effect from rare complications related to poor technique. Current science generally supports the safety of the product when used in a standardized aesthetic setting.

the sources

No named source held this one up — that absence is part of the verdict.