The core challenge with fat-soluble nutrients in powder supplements is simple but significant: hydrophobic actives don’t mix well with hydrophilic systems. In the body, vitamin A naturally dissolves in dietary fats and incorporates into mixed micelles for absorption — a lipid-rich digestive environment. In a dry powder capsule or tablet, that environment doesn’t exist.

Liposomal encapsulation bridges this gap using the same structural principle found in every living cell:

1 Phospholipid Bilayer Architecture

Phospholipids self-assemble into microscopic vesicles (80–300nm) — lipid-loving heads oriented inward around the vitamin A payload, water-compatible tails facing outward. This creates a carrier that disperses uniformly in water during manufacturing while keeping the active shielded from oxygen and light.

2 Verified Encapsulation, Not Blending

Encapsulation Efficiency (EE% ≥85%) is verified via dialysis/HPLC — confirming the vitamin A is genuinely inside the vesicles, not simply mixed alongside free phospholipids. DLS particle sizing (80–300nm, PDI ≤0.35) confirms consistent vesicle formation across every batch.

3 From Process Ingredient to Finished Product

The practical outcome: a fat-soluble nutrient that behaves like a water-dispersible ingredient on the production floor, retains potency through the product shelf life without heavy antioxidant systems, and delivers consistent per-unit dosing in the finished supplement.

Phospholipid Bilayer Protection

The same molecules that build every cell membrane form a protective vesicle around vitamin A — providing intrinsic oxidative shielding without relying on high-dose synthetic antioxidants. The phospholipid carrier itself has nutritional value as an essential membrane component.

EE% Verification: Proof of Encapsulation

Not all “liposomal” products deliver true encapsulation. We verify EE% ≥85% for every batch via dialysis/HPLC — confirming genuine vesicle loading, not simple phospholipid blending. Measured, documented, and batch-specific.

DLS Particle Size: Nano-Scale Consistency

Dynamic Light Scattering confirms 80–300nm vesicle dimensions with PDI ≤0.35 — small enough for stable suspension, precisely controlled enough for predictable per-unit dosing across production runs.

Cleaner Formulation, Same Shelf Life

With the phospholipid bilayer handling oxidation protection, formulators can reduce synthetic antioxidant loads — supporting cleaner Supplement Facts panels and more compelling brand transparency without compromising stability targets.

Quality Verification

QC

Formulation Applications

APPLICATIONS

What makes liposomal vitamin A different from standard vitamin A powder?

Standard retinyl palmitate is hydrophobic — it resists water dispersion, segregates in powder blends, and degrades through oxidation. Liposomal encapsulation wraps the vitamin A within phospholipid vesicles (verified by DLS particle sizing and EE% testing), which improves water dispersibility during manufacturing, provides a physical oxygen barrier during storage, and supports more uniform per-unit dosing in finished supplements.

How do I choose between 50% and 80% loading?

50% offers more excipient space for multi-ingredient complexes (immune blends, skin-nutrition stacks) where you need room for co-actives. 80% is ideal for high-potency single-active products or when minimizing capsule size is a priority. Both grades share the same encapsulation platform and QC standards — the difference is purely a loading ratio decision matched to your formulation goals.

How is the encapsulation quality verified?

Three independent QC checks per batch: (1) HPLC assay confirms declared loading (50% or 80% ±5%); (2) Encapsulation Efficiency via dialysis/HPLC verifies ≥85% of the payload is genuinely inside the liposomes; (3) DLS particle sizing confirms vesicles in the 80–300nm range with PDI ≤0.35. A batch-specific CoA documenting all three parameters is issued with every shipment.