Creatine is the most researched performance supplement there is, and it works the same way in women as in men — supporting strength output and recovery between hard sets. The addition of collagen and BCAAs rounds it into a post-workout formula rather than a single-ingredient powder.
Taken consistently rather than occasionally is what matters with creatine; the benefit comes from saturating muscle stores over weeks, not from any single dose. A daily serving is the simplest way to get there.
One thing worth knowing: creatine draws water into muscle tissue, so a small increase on the scale in the first couple of weeks is normal and is not fat gain. Suited to lifting, high-intensity training, and anyone building strength consistently.