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The short answer is that Copper Tripeptide-1 has earned its place as a skin care ingredient over decades of research, while Copper Tripeptide-3 was specifically engineered with hair follicles in mind
Consistency: The single biggest variable
This testing ensures that each product is evaluated against clear, measurable benchmarks rather than internal assumptions
You've done the cardio
Long-term metformin or proton pump inhibitor (PPI) users These medications can interfere with B12 absorption over time
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