Acne typically develops due to excess oil (sebum) production, blocked pores, bacterial overgrowth, and inflammation
Abboud KY, Reis SK, Martelli ME, Zordo OP, Tanniho F, de Souza AZZ, et al
Consumption, however, of 250g a day was associated with an increase in wrinkle length and depth.76 In a large cohort study (n=4025), beneficial effects were observed for a higher intake of vitamin C (decreased likelihood of facial wrinkles and dry skin) and consumption of linoleic acid (less atrophy and dry skin)
And so there was no studies being done
An updated analysis of the data collected 7.3 years after garlic supplementation ended provided further confirmation for a lack of significant reduction in gastric cancer incidence or mortality with supplemental garlic (117)
Xu, W., Wang, C., Long, Y., Li, C., & Li, G