Return policy comparison · 2026
K18 vs Sonrei
Policy data verified July 24, 2026 by the Thrifle team
Winner
K18
A-
4.0 / 5.0 · Very Good
Sonrei
C+
2.4 / 5.0 · Fair
The verdict
K18 has the more generous return policy in 2026, grading A- (4.0/5.0) against Sonrei's C+ (2.4/5.0). It wins 2 of 5 scoring axes; the biggest gap is the return shipping: free returns (incl. by mail) versus customer pays return shipping.
Score breakdown
Five axes, 5.0 points total — the same deterministic grader behind every Thrifle policy page.
K18Sonrei
Return window · worth 2.0
Restocking fee · worth 1.0
Return shipping · worth 1.0
Holiday window · worth 0.5
Transparency · worth 0.5
Key terms side-by-side
| K18 | Sonrei | |
|---|---|---|
| Return window | ✓ 90 days (direct website purchases only) | 30 days (from invoice date, original packaging required) |
| Free returns | ✓ Yes | No - fee deducted |
| Restocking fee | None | None |
| Return shipping | — | Customer pays unless the return is due to Sonrei's error, in which case shipping is free |
| Holiday extension | None published | None published |
| Non-returnable | Products bought at partner salons (must go back to that salon, not K18 directly) | Items returned after 30 days, products not in original packaging, returns without an authorization number |
| Watch-out items | — | — |
K18 tip
This generous 90-day window only covers orders placed directly on k18hair.com — if you bought it at your salon, K18 corporate won't take it back, you have to go through the salon itself.
Sonrei tip
Get a return authorization number before sending anything back — the policy explicitly says returns without one won't be refunded, so skipping that step can cost you the whole return.
Frequently asked questions
Who has the better return policy, K18 or Sonrei?
K18 has the more generous return policy in 2026, grading A- (4.0/5.0) against Sonrei's C+ (2.4/5.0). It wins 2 of 5 scoring axes; the biggest gap is the return shipping: free returns (incl. by mail) versus customer pays return shipping.
What is K18's return window?
K18's return window is 90 days (direct website purchases only).
What is Sonrei's return window?
Sonrei's return window is 30 days (from invoice date, original packaging required).
Does K18 or Sonrei offer free returns?
K18: Yes. Sonrei: No - fee deducted.