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Compound · Phospholipid

Phosphatidylserine

Phosphatidylserine is a phospholipid. Phospholipid studied for cell membrane integrity in neural tissue.

Phosphatidylserine · updated 24 Oct 2026

Phosphatidylserine is a phospholipid, a membrane lipid carrying a serine head group, and the Celyfe compound library files it under cell membrane integrity in neural tissue. It is not carried in any Celyfe pen.

What is phosphatidylserine?

Like phosphatidylcholine, phosphatidylserine is a phospholipid: a glycerol backbone with two fatty-acid chains and a phosphate group, in this case joined to the amino acid serine as the head group. Phospholipids are the structural basis of cell membranes. The Celyfe library classes phosphatidylserine as a phospholipid with an oral delivery route and the mechanism note: supports cell membrane integrity in neural tissue. It is not a peptide and not a regulated compound.

Is phosphatidylserine in a Celyfe pen?

No. The phospholipid that does travel in a Celyfe pen is phosphatidylcholine, included as a 50mcg carrier in the vehicle of the NAD+ Precision Pen. Phosphatidylserine is a separate compound with a different head group and is not in any pen. Celyfe does not currently sell it as a product and lists no phosphatidylserine reference, so this page makes no statement about research findings.

Key takeaways

  • •Phosphatidylserine is a phospholipid.
  • •Library note: Phospholipid studied for cell membrane integrity in neural tissue.
  • •Library entry: not currently carried in a Celyfe pen.

At a glance

Class
Phospholipid
Full name
Phosphatidylserine

Role in the library

Phospholipid studied for cell membrane integrity in neural tissue.

Compared with

Frequently asked questions

Sources

  1. NAD+ Precision Pen (product page)
  2. Compare: Alpha-GPC vs Phosphatidylserine
  3. Compare: Lion's Mane vs Alpha-GPC
  4. Guide: How to store research peptides

Related phospholipid compounds

Phosphatidylserine: Serine-Head Phospholipid | Celyfe