You gotta respect the tenacity of their products doing the talking, but I would still have liked to learn a bit more about them
You have no appetite
Avoid heavy exercise and excessive sun exposure in the 24 hours before a session

Joints and Muscles: Collagen promotes the strength and health of tendons, bones, and ligaments, with added nutrients to enhance cellular energy production and support exercise efficiency* Easy to Absorb: Provides 15 g of hormone-free collagen types I and III, which have been broken down into shorter amino acid chains, called peptides, that are easier to digest Unflavored Collagen: Mixes easily into a hot or cold beverage, allowing you to get your collagen your way in your coffee, your smoothie, or your own beverage creation NSF Certified for Sport: Tested for compliance with label claims and to ensure the absence of nearly 300 substances banned by many major athletic organizations Trusted: Thorne is trusted by 100+ professional sports teams and the #1 most recommended clinical brand by consumers and health-care practitioners (Based on a 2026 independent survey of US supplement consumers and health-care practitioners)

The injection itself is usually hydroxocobalamin, which the UK prefers over cyanocobalamin because it stays in the body longer, as set out in the BNF entry
Chennamsetty A, Khourdaji I, Goike J et al: Electrosurgical management of hunner ulcers in a referral center's interstitial cystitis population