Even powders from the same brand or batch can differ in purity and concentration?

Yep, it happens more than people think same label doesn’t always mean same quality.

Batch numbers don’t guarantee consistency small variations can still slip through.

Powder processing isn’t always perfect minor inconsistencies add up fast.

That’s why results feel hit or miss sometimes same source, different outcome.

QC matters more than branding a logo doesn’t equal lab-grade precision.

This is why testing gets mentioned a lot trust but verify vibes.