Phosphatidylcholine

Phosphatidylcholine Supplements Australia

Phosphatidylcholine (PC) is a phospholipid – a fat-based compound that forms the structural layer of cell membranes. It differs from other choline-containing forms such as choline bitartrate or CDP-choline in that it delivers the full phospholipid structure alongside choline, which is how it occurs naturally in food sources including eggs, liver, and sunflower seeds.

PC is most commonly sought by people following practitioner-led protocols involving phospholipid replenishment or liver function support. It is also a structural component of liposomal delivery systems, which is why some formulas in this range include it as a carrier compound alongside other primary actives rather than as the main ingredient.

Key principle: Before choosing, confirm whether phosphatidylcholine is the primary active in the formula or the structural basis of a liposomal delivery system – the dose and role differ significantly between dedicated PC supplements and complex formulas where PC supports the delivery carrier.

Phosphatidylcholine products at Fairfield Nutrition

Product Brand Best For Key Ingredients / Notes
Researched Nutritionals ATP 360 (90 caps) Researched Nutritionals Energy and fatigue support protocol PC alongside NT Factor, CoQ10, and mitochondrial support nutrients
Seeking Health Optimal PC (100 Softgels) Seeking Health Dedicated PC supplementation, soy-free softgel Sunflower lecithin phospholipid complex, non-GMO, soy-free
Quicksilver Pure PC – Phosphatidylcholine (120ml) Quicksilver Scientific Dedicated PC in liposomal liquid form Pure phosphatidylcholine in liposomal liquid delivery
Quicksilver Scientific The One Phospholipid Mitochondrial Optimiser Quicksilver Scientific Mitochondrial support complex CoQ10, Bio PQQ, resveratrol, DeltaGOLD tocotrienols, PC in liposomal liquid
Quicksilver Membrane Mend (100ml) Quicksilver Scientific Membrane support and antioxidant complex PC, Ahiflower seed oil, astaxanthin, tocotrienols; nanoemulsified liquid
BodyBio PC Phosphatidylcholine Liquid 8oz BodyBio High-concentration dedicated PC, liquid format High-dose phospholipid complex in liquid form
Quicksilver Scientific DIM Nanoemulsified Spray (20mg) Quicksilver Scientific Oestrogen metabolism support DIM (diindolylmethane) as primary active; PC forms the nanoemulsified delivery system

How to choose between Phosphatidylcholine products

If you have been directed toward phosphatidylcholine specifically, the key question is whether the formula you are considering uses PC as the primary active ingredient or as the structural basis of a liposomal delivery system.

  • Dedicated PC supplements: Seeking Health Optimal PC, Quicksilver Pure PC, and BodyBio PC Liquid all provide phosphatidylcholine as the primary active. Seeking Health is a soy-free softgel suited to those who prefer a measured capsule dose; Quicksilver Pure PC and BodyBio both offer liquid formats at higher concentrations, with Quicksilver using a defined liposomal delivery system.
  • Membrane and antioxidant complex: Quicksilver Membrane Mend combines phosphatidylcholine with Ahiflower seed oil, astaxanthin, and tocotrienols – suited to protocols pairing membrane phospholipids with antioxidant coverage rather than PC as a standalone nutrient.
  • Mitochondrial and energy complexes: Researched Nutritionals ATP 360 and Quicksilver The One both include PC alongside mitochondrial-support nutrients such as CoQ10 and PQQ. These are formula-led choices – PC is one ingredient among several actives, not the primary rationale for selecting them.

If PC is the target nutrient in your protocol, start with the dedicated supplements; if you are selecting a formula for its other actives, the PC content supports delivery and phospholipid profile rather than being the lead reason to choose it.


All Phosphatidylcholine products stocked at Fairfield Nutrition are shown below.