Mike Reinold: Exactly
Hollow microneedles are needles in the true clinical sense, with a bore down the center
Nakatomi, T., Itaya-Takahashi, M., Horikoshi, Y., Shimizu, N., Parida, I.S., Jutanom, M., Eitsuka, T., Tanaka, Y., Zingg, J.M., Matsura, T., Nakagawa, K., 2023
Though not labeled as such, the 500mg berberine supplement option has no additional animal-based ingredients (just a hypromellose capsule and calcium laurate), making it vegan-friendly
Often called the Master Antioxidant, it also boosts the utilization and recycling of other antioxidants, like vitamins C and E for example
BTW, its also a food additive