Return policy comparison · 2026
K18 vs RevitaLash Cosmetics
Policy data verified July 24, 2026 by the Thrifle team
Winner
K18
A-
4.0 / 5.0 · Very Good
RevitaLash Cosmetics
C+
2.4 / 5.0 · Fair
The verdict
K18 has the more generous return policy in 2026, grading A- (4.0/5.0) against RevitaLash Cosmetics'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.
K18RevitaLash Cosmetics
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 | RevitaLash Cosmetics | |
|---|---|---|
| Return window | ✓ 90 days (direct website purchases only) | 30 days (unused or defective) |
| Free returns | ✓ Yes | No - fee deducted |
| Restocking fee | None | None |
| Return shipping | — | Customer pays return shipping unless the item is defective |
| Holiday extension | None published | None published |
| Non-returnable | Products bought at partner salons (must go back to that salon, not K18 directly) | Opened lash and brow serums are generally not accepted for return except when defective, due to hygiene concerns |
| 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.
RevitaLash Cosmetics tip
Because these are eye-area serums, most retailers (including this one) treat opened bottles as final sale unless something is actually wrong with the product - so buy the smaller size first if you're trying it for the first time.
Frequently asked questions
Who has the better return policy, K18 or RevitaLash Cosmetics?
K18 has the more generous return policy in 2026, grading A- (4.0/5.0) against RevitaLash Cosmetics'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 RevitaLash Cosmetics's return window?
RevitaLash Cosmetics's return window is 30 days (unused or defective).
Does K18 or RevitaLash Cosmetics offer free returns?
K18: Yes. RevitaLash Cosmetics: No - fee deducted.