I have worn mascara every day since I was fourteen, and I stopped for two months because of this. I was asleep within five minutes. The rebook date arrived by text at six weeks, which saved me a lot of grown-out-looking lashes.
Reviews
What people say.
Six reviews, including the four-star one about how far ahead Saturdays book.

Six of them, one with four stars.
Sample reviews on a demonstration site. Surnames left off at the reviewers' request.
I thought the patch test was a formality until mine came up red. Seren rang me back in ten minutes and told me to see the pharmacist, then cancelled the booking without charging. I would go back to any place that takes this so seriously.
Priya looked at my brows and asked if I wanted the shape they were or the shape they ought to be. Fifteen minutes later, I had the second one, and it is the first time they have matched in twenty years.
Very natural, very neat, and they talked me out of the length I asked for, which was the right call. Four stars because Saturdays book up three weeks in advance, so my infill slot has gone over two and a half weeks a couple of times.
Told them I am on retinol. They asked me to come back in a fortnight rather than do it there and then, which lost them the sale that day but kept me as a customer. The brows are brilliant.
I am fair and my brows disappear in photographs. Twelve pounds and a quarter of an hour fixed it. They mixed three shades on the back of a card until we got the one that looked like I was born with it.
About the four stars
Beth is right about Saturdays.
There are only two rooms and a lot of people work during the week. We open until seven on weekdays for that reason, and if you book your next infill while you are here, you keep your Saturday slot. Tell us if you are stuck past three weeks, and we will find you a space.
Been to see us? Tell the next person.
It helps other people decide. And if anything has flared or felt wrong, ring us first.