1-on-1 Comparison · Research-Backed
iRESTORE Elite vs Kiierr Laser Cap: Red Light Therapy for Hair Growth
$1,899 vs $599Updated May 2026
Disclaimer: Research parameters are derived from peer-reviewed studies in our database. Product data is sourced from brand websites. Check the brand website for the most accurate and up-to-date details. If you find any gaps or inaccuracies, please contact us for correction. This is not medical advice. Consult a qualified medical practitioner before making any health-related decision.
At a glance
iRESTORE Elite
$1,8995% below median
★ 4.7
(1,022)
Diodes
500
Laser/LED
300L+200
Power
2500 mW
Wavelength
625/655/680 nm
Protocol
12 min
Weekly
84 min
Warranty
3 yr
Guarantee
365d
Kiierr Laser Cap
$599
—Diodes
—
Laser/LED
—
Power
N/D
Wavelength
—
Protocol
—
Weekly
—
Warranty
—
Guarantee
—
Quick verdict
iRESTORE Elite leads on
No clear advantage on measured factors.
Kiierr Laser Cap leads on
Price
$599$1,300 more
Equal or tied
Total diodes500
Laser diodes300
Warranty3 yr
Money-back365d
Weekly dose84 min/wk
Full comparison
| Feature | iRESTORE Elite | Kiierr Laser Cap |
|---|---|---|
| Ratings & Guarantee | ||
| Rating | ★ 4.7 | — |
| Warranty | 3 yr | — |
| Money-back | 365d | — |
| Price | ||
| Price | $1,899 | $599 |
| Physical | ||
| Form factor | Helmet | — |
| Hands-free | Yes | — |
| Power | Corded | — |
| Wearable outside | No | — |
| Research Scores | ||
| FDA cleared | ✅ Yes — 510(k) | ❌ No |
| Wavelength | ✅ 625/655/680 nm | ❓ Not disclosed |
| Diode type | ⚠️ Laser + LED | ❓ Not disclosed |
| Irradiance | ❓ Not disclosed | ❓ Not disclosed |
| Weekly total | 84 min/wk | — |
| Ideal dose | ⚠️ 84 min/wk | ❓ Not disclosed |
| Device Specs | ||
| Total diodes | 500 | — |
| Laser diodes | 300 | — |
| LED diodes | 200 | — |
| Power output | 2500 mW | N/D |
Who should choose which
iRESTORE Elite
- →Highest diode count in range
- →daily short sessions
- →extensive scalp coverage
Kiierr Laser Cap
- See specs above for best-fit scenarios.
Research behind the scores
| Study | What it found |
|---|---|
| Liu et al. 2019 — Low-Level Laser Therapy for AGA | Devices under 60 min/week showed ~64% stronger results. |
| Lueangarun et al. 2021 — RCT: 655 nm Red Light Therapy vs Sham | FDA-cleared 655 nm laser cap produced significant hair count increase at 24 weeks. |
Consumer Advisory is reader-supported. Pages may contain affiliate links. Research scores are never modified by commercial relationships.