Kirkland Signature Vitamin D3 600 ct
No item number recorded · Health & VitaminsOn sale now
The short versionEarly signal
Goes on sale about every 2 months. Typically $2.50 off. Next expected Dec 7–21, 2026. Based on only two sales, treat this as a rough guide.
Seen on sale 2 times.
Sale timeline
● sale (height = discount)○ unsure reading┆ today▮ predicted window
Full history
| Dates | Discount | Sale price | Source |
|---|---|---|---|
| Oct 19 – Nov 15, 2026 | $2.50 off | — | Costco November 2026 |
| Aug 24 – Sep 20, 2026 | $2.50 off | — | Costco September 2026 |