luna partners with Modibodi
A free four-week challenge for teens
Updated October 31, 2026
In this article
Introducing the Modibodi x luna challenge
For lots of teens, a period can feel like a reason to miss out.
Skipping a sleepover, sitting out of swimming or spending a school day worrying about leaks are things luna hears about every day.
That's why we're so excited to be partnering with leak-proof period wear brand Modibodi.
Together, we've created the Modibodi x luna challenge: a four-week interactive experience built around one idea.
Your period shouldn't mean sitting any of it out.
Running from 1 to 29 November 2026, the challenge includes 16 bite-sized tasks across four themed weeks, with new tasks unlocking every Sunday.
Teens can learn all about:
👉 sleepovers and school trips, from changing products to avoiding overnight leaks
👉 swimming and sport on their period, and what they can wear
👉 getting through a long school day, from building a period kit to handling leaks
👉 reusable period products, how to look after them and what suits their body
Each completed week earns luna points, and every week there's a £250 Modibodi voucher up for grabs.
UK teens who opt in and finish that week's tasks on time are entered into the weekly draw, so there are four chances to win.
Throughout the challenge, teens can explore articles, real community questions, quizzes and polls.
It's all free to play, whether their period has started yet or not.
luna's top Modibodi picks for teens
👉 Teen Period Sleep Shorts 2 Pack: for sleepovers and nights away
👉 Teen Swimsuit Racerback One Piece: for swimming lessons and pool days
👉 Teen Seamfree Boyleg & Boyshort Pack: for sport and active days
👉 School Week Period Starter Pack: for the school week
👉 Teen Hipster Bikini & Boyshort Pack: for heavier days
👉 Discover Modibodi's teen range
Join the challenge for free
If you're a teen, download the luna app today and take part in the Modibodi x luna challenge to earn rewards, learn something new each week and enter the weekly draws (UK only, T&Cs apply).
If you're a parent, the challenge is a positive, educational way for your daughter to feel more prepared for life on her period, in a safe, trusted space.
Available exclusively in the luna app from 1 to 29 November 2026.
How we created this article:
luna's team of experts comprises GPs, Dermatologists, Safeguarding Leads and Junior Doctors as well as Medical Students with specialised interests in paediatric care, mental health and gynaecology. All articles are created by experts, and reviewed by a member of luna's senior review team.
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