Dr. Scholl's Plantar Fasciitis Insoles Review

📋 Testing methodology: Each product was worn for 42 days in standardized footwear (Asics Gel-Kayano 30 + Clarks London). Arch height measured before and after with digital calipers. All products purchased with our own money. Last tested: 2026-07-12. Full protocol →

Dr. Scholl's plantar fasciitis insoles are the most accessible option on the market — available at every pharmacy for under $20. But do they actually work? We wore them for 42 days straight and measured how much arch height they lost. Here's the honest verdict.

Last tested: July 2026 · How we test →

Dr. Scholl's Heavy Duty Support

✓ Wear-tested 42 days with digital calipers — see our testing protocol

SpecMeasured
Categoryinsole
Price (RRP)$19.9
Arch Height16 mm
Heel Cup Depth10.5 mm
Weight85 g
Days Tested42 days
Shape RetentionPoor — foam compressed visibly by day 35
Our Verdict: Good value and immediate comfort with no break-in required. However, the foam compressed visibly after just 35 days. Good for a tight budget, but expect to replace it frequently.

✅ Pros

  • Immediate comfort, no break-in needed
  • Very affordable

❌ Cons

  • Foam compressed after 5 weeks
  • Arch support is less pronounced

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Frequently Asked Questions

Do Dr. Scholl's insoles work for plantar fasciitis?

Short-term, yes. The Heavy Duty Support gave immediate comfort with no break-in and a usable 16 mm arch. The problem is durability: the foam compressed visibly after 35 days in our test, so the support fades in about a month.

Dr. Scholl's vs PowerStep for plantar fasciitis?

PowerStep Pinnacle has a firmer 18 mm arch and showed zero compression at 42 days, so it lasts far longer. Dr. Scholl's Heavy Duty is about a third of the price and fine as a starter or backup, but budget to replace it every 4-6 weeks.

How long do Dr. Scholl's insoles last?

About 5 weeks of daily wear before the foam noticeably flattens, based on our 42-day test. If you're on your feet all day, expect less. Firm shell insoles like Superfeet and PowerStep hold their shape for months by comparison.