youtheory Collagen + Biotin 390 ct
Item #597726 · Health & VitaminsExpected Dec 9, 2025 – Jan 14, 2026, but it hasn't appeared.
It may have been replaced by a newer model or discontinued. If it is still sold, the next guess is Dec 28, 2026 – Feb 2, 2027.
The short versionSolid pattern
Goes on sale about every 3 months. Typically $5 off. Next expected Dec 28, 2026 – Feb 2, 2027.
Seen on sale 4 times.
Sale timeline
● sale (height = discount)○ unsure reading┆ today▮ predicted window
Full history
| Dates | Discount | Sale price | Source |
|---|---|---|---|
| Sep 22 – Oct 19, 2025 | $5 off | — | Costco October 2025 |
| Jun 18 – Jul 20, 2025 | $5 off | — | Costco July 2025 |
| Mar 5–30, 2025 | $5 off | — | Costco March 2025 |
| Dec 26, 2024 – Jan 20, 2025 | $5 off | — | Costco January 2025 |