Urinary Tract Infections (UTIs) A foul-smelling or strong ammonia-like odor in urine can also be a sign of a urinary tract infection (UTI)
From there, it layers in brightening with 3-O-ethyl ascorbic acid and ascorbyl tetraisopalmitatetwo more stable, gentler vitamin C derivatives that help even tone over time without the sting you might get from L-ascorbic acid
For a detailed look at what retatrutide does and how it compares to existing drugs, see our retatrutide vs tirzepatide comparison
For example, Semaglutide has been associated with a 16% reduced risk of developing osteoarthritis in individuals with obesity
Further Reading [1] Eli Lilly and Company, 'Lilly's triple agonist, retatrutide, delivered powerful weight loss in pivotal Phase 3 obesity trial', Investor press release, May 2026