Challenges › 75 Soft Skin Edition
75-day challenge
75 Soft Skin Edition
The long game: 75 days of eating for your skin. Glowcast averages your meals each day and tells you if the day passed.
On iPhone: $4.99 a week, $14.99 a month or $69.99 a year, with a 7-day trial on the yearly plan.
the rule:
Keep your daily glow average up, 75 days straight.
Every meal you snap feeds the day's average, so one off meal can be balanced out.
- hydration
- sugar spikes
- inflammation
- collagen
- Length
- 75 days
- Level
- Advanced
- You count
- Your daily average
What does Glowcast rate?
Every meal is rated on 8 things your skin cares about:
Hydration
water-rich foods and drinks
Sugar impact
how fast a meal raises blood sugar
Inflammation
omega-3 fats and colourful plants
Antioxidants
vitamin C, vitamin E and colourful produce
Collagen support
vitamin C and other building blocks
Nutrients
vitamins and minerals skin uses for repair
Gut health
fibre and fermented foods
Hormones
how hard a meal hits your blood sugar
Why 75 days?
The diet trials that helped skin ran about two to three months. 75 days is long enough to give your plate a fair test on your own face.
the nerdy bit
The acne diet trials ran from 8 weeks (Reynolds et al., 2010) through 10 weeks (Kwon et al., 2012) to 12 weeks (Smith et al., 2007), and skin improved in all three. In the 12-week trial, lesion counts fell by 23.5 on a low-glycemic-load diet against 12.0 on a standard one; in the 8-week trial, both diets helped and the study couldn't tell them apart. Colour moves sooner: in a Scottish study of 35 people, changes in how much fruit and veg they ate showed up in their skin colour within six weeks, and about three extra portions a day was enough to look healthier to others (Whitehead et al., 2012). 75 days is a little under 11 weeks, so it covers both.
steal this
Day 1 ideas
Lunch
Mediterranean salad
Dinner
Salmon and quinoa bowl
Anytime
Golden glow soup
Glowcast checks the day's average for you
the other 10 weeks?
Weeks 2 to 11 unlock in the app
- Week 1done ✓
- Week 2
- Week 3
- Week 4
- Week 5
- Week 6
- Week 7
- Week 8
- Week 9
- Week 10
- Week 11
- badge at the end
- Snap each meal and Glowcast keeps your daily average
- Your streak and progress ring, day by day
- 115 glow recipes for when you're stuck
Quick questions
What if I have a bad day?
A day that misses resets your streak and the challenge keeps going, but the badge needs every day, so a missed day means no badge this time.
Do I need to log every meal?
The day is judged on what you snap, so the more you log, the fairer the day's average.
Can I do it with another challenge?
Yes. You can run two challenges at once, like 75 Soft Skin Edition and Gut Reset.
Food inspo, not medical advice.
Sources
- Reynolds RC et al. Effect of the glycemic index of carbohydrates on acne vulgaris. Nutrients. 2010. pubmed.ncbi.nlm.nih.gov
- Kwon HH et al. Clinical and histological effect of a low glycaemic load diet in treatment of acne vulgaris in Korean patients: a randomized, controlled trial. Acta Derm Venereol. 2012. pubmed.ncbi.nlm.nih.gov
- Smith RN et al. A low-glycemic-load diet improves symptoms in acne vulgaris patients: a randomized controlled trial. Am J Clin Nutr. 2007. pubmed.ncbi.nlm.nih.gov
- Whitehead RD et al. You are what you eat: within-subject increases in fruit and vegetable consumption confer beneficial skin-color changes. PLoS One. 2012. pubmed.ncbi.nlm.nih.gov
