Probably botox. A syringe of botox has 100 units, a unit is 5.0 x 10 power -11 grams. [2] How much botox is produced per year: 800 million units [1] = 0.04 gra

Probably botox. A syringe of botox has 100 units, a unit is 5.0 x 10 power -11 grams. [2] How much botox is produced per year: 800 million units [1] = 0.04 grams Average cost per injection is $466 [3] Allergan’s $2.8 billion Botox empire (2017), on track to grow to $4 billion by 2020 [4] [1] https://www.brightnewme.co.uk/want-to-know-what-its-like-inside-the-worlds-only-botox-manufacturing-plant/ https://www.brightnewme.co.uk/want-to-know-what-its-like-ins... [2] a unit is 5.0 x 10 power -11 grams: https://toxedfoundation.org/botulinum-toxin-and-botox/ https://toxedfoundation.org/botulinum-toxin-and-botox/ [3] https://www.plasticsurgery.org/cosmetic-procedures/botulinum-toxin/cost https://www.plasticsurgery.org/cosmetic-procedures/botulinum... [4] https://www.bloomberg.com/news/features/2017-10-26/inside-fort-botox-where-a-deadly-toxin-yields-2-8-billion-drug https://www.bloomberg.com/news/features/2017-10-26/inside-fo...