All substances classified as narcotics are legal. While certain chemicals are illegal to possess, one can apply for a license to use them in manufacturing. It’s mostly restricted to trusted corporations. While there are no drug laws, many corps maintain certain standard and most employees are screened and drug tested — a corporation is allowed to maintain it’s own standard of permissible substances that range from very liberal (smoke and inject whatever you want) to extremely conservative (we find out you had a beer, we’ll fire you).
There’s only ONE substance that is controlled and monitored by the Feds and it’s called the “Booster Spice”
Booster spice is an umbrella term for a combination of drugs and medical procedures intended to extend the human lifespan beyond that of an average expectancy. While such things are not forbidden explicitly they are heavily controlled and licensed. For most, such procedures are prohibitively priced. Performing such procedures without a license is an automatic death sentence.