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Compound · Phospholipid

Phosphatidylcholine

Phosphatidylcholine Complex is a phospholipid. Phospholipid carrier in the vehicle, studied for cell membrane integrity.

Phosphatidylcholine Complex · updated 24 Oct 2026

Phosphatidylcholine is a phospholipid, one of the main structural lipids of cell membranes. In the Celyfe system it is not a headline compound but a carrier: a phosphatidylcholine complex is included at 50mcg in the vehicle of the NAD+ Precision Pen. This page explains what it is, what it does in the cartridge and how it relates to the other phospholipid in the compound library.

What is phosphatidylcholine?

Phosphatidylcholine belongs to the phospholipid class. A phospholipid has a glycerol backbone carrying two fatty-acid chains and a phosphate group, and in phosphatidylcholine that phosphate is joined to a choline head group. The fatty-acid tails are water-avoiding and the choline head is water-attracting, which is why phospholipids arrange themselves into the double-layer membranes that surround every cell.

That membrane role is the reason the Celyfe compound library files phosphatidylcholine as a phospholipid carrier studied for cell membrane integrity. It is a structural and carrier lipid, not a signalling molecule, and it is not a peptide.

How phosphatidylcholine is used in the Celyfe system

The NAD+ Precision Pen carries 500mg of NAD+ in a pre-filled 3ml cartridge, and its vehicle contains a phosphatidylcholine complex at 50mcg together with trans-resveratrol at 25mcg. The product page describes the phosphatidylcholine complex as a phospholipid carrier included in the vehicle. It is a microgram-level component rather than a second active compound, and it is listed on the label and recorded on the batch certificate alongside the NAD+.

Because the cartridge is pre-mixed, the phosphatidylcholine is already in solution with the NAD+ when the pen leaves the facility. There is no reconstitution step and no separate carrier to source. Each click of the pen dispenses 0.01ml of the complete formulation, 300 clicks per cartridge, and the batch-specific certificate of analysis covers the cartridge as manufactured.

Celyfe does not sell phosphatidylcholine on its own. The only way it appears in a Celyfe product is as part of the NAD+ Precision Pen vehicle.

Handling, storage and quality

Phosphatidylcholine is handled as part of the NAD+ Precision Pen, so the storage rules are those of the pen. Refrigerate the cartridge at 2 to 8 degrees Celsius as soon as the parcel arrives, keep it sealed and away from light, and never freeze it. The pen ships cold-chain in a foil pouch with ice packs and a batch certificate that records HPLC purity for the batch.

Key takeaways

  • •Phosphatidylcholine Complex is a phospholipid.
  • •Library note: Phospholipid carrier in the vehicle, studied for cell membrane integrity.
  • •Carried in: NAD+ Pen at 50mcg per pre-filled 3ml cartridge.

At a glance

Class
Phospholipid
Full name
Phosphatidylcholine Complex
Per cartridge
50mcg
Format
Pre-filled 3ml pen cartridge

Role in the library

Phospholipid carrier in the vehicle, studied for cell membrane integrity.

Used in

NAD+ Precision Pen - Nicotinamide Adenine Dinucleotide | 500mg

NAD+ Precision Pen - Nicotinamide Adenine Dinucleotide | 500mg

Free reusable pen included

$225

Frequently asked questions

Sources

  1. NAD+ Precision Pen (product page)
  2. Guide: What is NAD+?
  3. Guide: How to store research peptides
  4. Guide: What is a certificate of analysis?
  5. Compare: NAD+ vs Resveratrol
  6. Compare: Alpha-GPC vs Phosphatidylserine

Related phospholipid compounds

Phosphatidylcholine: 50mcg Carrier in the NAD+ Pen | Celyfe