A heatwave (or just being on public transport for more than five minutes) means less clothes - hooray! - more liquid consumption, alcoholic or otherwise - woohoo! - and a beauty conundrum that strikes fear into our hearts.
How do I keep my makeup from sliding off my face by the time I get to work? Easy, understand your skin type and find your perfect product match.
Check out our roundup of the best sweat-proof makeup products helping you to do make-up that lasts all day...
This story first appears on ELLEUK.com.
For more Beauty, head here. Or check out All The Skincare Secrets And Life Advice We Learnt From Sunday Riley and All Your Eyebrow Threading Questions Answered.