FWIW. I looked it up and this is part of what i read.
No, they are not worthless, but they have likely experienced some degradation and should be used with caution. Reconstituted peptides (mixed with bacteriostatic water or similar) are far less stable than in lyophilized (powder) form and are best kept refrigerated at 2–8°C (fridge temperature). Leaving them at typical room temperature (around 20–25°C / 68–77°F) for 8 hours is not ideal and can reduce potency, but it usually doesn’t render them completely inactive or unsafe.
That said, speaking just for myself, id still use them. BAC should protect them from any short term exposure to room temp.