Slimthick In 28 Challenge - Starts September 7

Slimthick In 28 Challenge - Starts September 7

August 25, 2026
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28 days. One group. Everyone starting on the same day.

Slimthick In 28 is a live round — lower body sculpting and waist work, mapped out day by day, with a group of women moving through it at the same time as you. The accountability is built in instead of something you have to go find on your own.

Round Dates

  • Day 1: September 7th, 2026

    • Day 28: October 4th, 2026

  • Doors close: October 3rd, 2026

Join before day 1 so you start with the group.

Why 28 Days Works

Twenty-eight days is long enough to change how your body looks and feels, and short enough that you can see the finish line from day one. Most women don't quit because the plan was wrong — they quit because it was open-ended. A start date and an end date fix that.

How It Breaks Down

  1. Week 1 — Foundation: Learn the movements and set your baseline. Every exercise has a video demo.

  2. Weeks 2-3 — Build: Volume and intensity climb. This is where the shape starts showing up.

  3. Week 4 — Peak: Your strongest week. You finish the round doing more than you could on day one.

This Is For You If

  • You want lower body shape and a tighter waist — and you want a deadline

  • You start strong on your own but lose momentum by week two

  • 28 days feels doable right now in a way that 12 weeks doesn't

  • You train better when other women are doing the same workout that day

  • You want to prove the habit to yourself before committing to a full program

What You Get

  • All 28 days in the DNF App: Every workout laid out, with video demos for each movement.

  • Home and gym versions: Train wherever you are that day.

  • Daily structure: You always know what today's session is. No planning, no guessing.

  • Clear reps, sets, and rest: Nothing left for you to figure out.

  • A group start: Everyone begins on the same day, so you're never doing it alone.

Questions, Answered

  • Do I need a gym? No. Every workout comes in both a home and gym version.

  • What if I join a few days late? You can still jump in. Pick up where the group is and finish your 28 days.

  • I'm a total beginner — is this for me? Yes. Every movement scales, and the demos show you exactly what it should look like.

  • Will I get bulky? No. This round shapes your lower body and tightens your waist — it doesn't add size to your frame.

  • What happens after the 28 days? Most women roll straight into the Slim Thick Method, which takes the same focus out to 8 weeks.

Ready?

Twenty-eight days from now you'll either be four weeks in, or four weeks older. Same 28 days either way.

JOIN SLIMTHICK IN 28 →