Zena Liquid Collagen + Biotin 30 fl oz
No item number recorded · Health & VitaminsNext expected now through Dec 7
The short versionLikely pattern
Goes on sale about every 2 months. Typically $6 off. Next expected now through Dec 7.
Seen on sale 3 times.
Sale timeline
● sale (height = discount)○ unsure reading┆ today▮ predicted window
Full history
| Dates | Discount | Sale price | Source |
|---|---|---|---|
| Jul 27 – Aug 23, 2026 | $6 off | — | Costco August 2026 |
| May 11 – Jun 7, 2026 | $7 off | — | Costco May 2026 |
| Apr 6 – May 3, 2026 | $6 off | — | Costco April 2026 |