Copper Peptides (GHK-Cu) vs. L-Ascorbic Acid (Vitamin C): Oxidation & AM/PM Split

Why layering GHK-Cu Copper Peptides (pH 6.0) with L-Ascorbic Acid (pH 3.2) triggers Cu2+-catalyzed redox inactivation and how to split them across AM and PM.

Verified Telemetry & Deliverable Benchmark Matrix

Entity / Parameter	Verified Readout	Recommended Action	Status
L-Ascorbic Acid 15% (AM Slot)	pH 3.2 • pKa 4.2 Antioxidant	Verified Leader • Primary Benchmark	OPTIMAL (Rank #1)
GHK-Cu Copper Peptides (PM Slot)	pH 6.0 • Collagen Remodeling	Baseline Challenger • Secondary Benchmark	GAP DETECTED
Net Differential & Lift	96/100 Harmony When Partitioned into AM Vitamin C + PM Peptides	Deploy 9:16 Apple-Wallet Ritual Card & 4-Night Calendar	VERIFIED LIFT
Row #4 Deep-Dive Attribution Matrix	Locked in Preview	Reveal via Email or 99¢ Single-File Pass	LOCKED_PREVIEW
Row #5 Full Raw Export & Action Script	Locked in Preview	Unlock 3-File Bundle ($1.99)	LOCKED_PREVIEW

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Capability	DermLogic	$150 Derm Consult / Trial-and-Error	Generic Barcode Scanner Apps
Active Layering & ΔpH Math	✓ Exact \|ΔpH\| > 1.8 Peptide & Vitamin C Oxidation Detection	Weeks of Wait Time for a Single Routine Check	Scores Single Products in Isolation (Misses Layering Clashes)
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✦ pH Wait-Time & Barrier Split — Channel & Protocol Benchmarks

Sephora Clean Ritual: Move L-Ascorbic Acid (pH 3.2) to AM; keep Copper Peptides in PM to prevent Cu2+ oxidation

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