Home Ingredients Phosphocomplex® (Silybin Phytosome — Indena)
Liver HealthMetabolic Health

Phosphocomplex® (Silybin Phytosome — Indena)

Silybum marianum
Evidence Level
Limited
1 Clinical Trial
3 Documented Benefits
2/5 Evidence Score

Phosphocomplex® is a silybin phytosome from Indena, in which silybin (the main active of milk thistle) is bound to phosphatidylcholine to greatly improve its otherwise poor absorption. Silybin is studied for supporting liver health and protecting liver cells from oxidative and metabolic stress.

Studied Dose A standardized daily dose providing bioavailable silybin.
Active Compound Silybin (from milk thistle, Silybum marianum) complexed with phosphatidylcholine (a phytosome) for enhanced absorption.

Benefits

Liver support

Silybin is studied for supporting liver health and protecting liver cells, the traditional use of milk thistle, with the phytosome improving how much reaches the body.

Supported by Trial 1

Antioxidant protection

Silybin is a strong antioxidant that helps defend liver and other cells against oxidative damage.

Supported by Trial 1

Improved absorption

The phosphatidylcholine complex dramatically increases silybin's bioavailability compared with ordinary milk thistle extract.

Supported by Trial 1

Mechanism of action

1

Phytosome absorption

Binding silybin to phosphatidylcholine creates a lipid-compatible complex that crosses the gut wall far more efficiently than free silybin.

2

Hepatoprotective antioxidant action

Silybin stabilizes liver-cell membranes, scavenges free radicals, and supports liver-cell regeneration pathways.

Clinical trials

1
Silybin Bioavailability — Formulation Study
PubMed

Study of improved-solubility and bioavailability silybin formulations. (Zhu et al. 2025, Pharmaceuticals)

Laboratory and bioavailability assessment.

Enhanced silybin formulations achieved markedly higher solubility and bioavailability, the rationale behind the phytosome approach; human outcome data for the specific complex are limited.

Side effects and drug interactions

Common Potential side effects

GENERALLY WELL-TOLERATED — adverse effects are uncommon at normal doses.
Mild digestive upset is occasionally reported.
Discontinue if any unusual reaction occurs.

Important Drug interactions

Drugs metabolized by the liver — silybin can affect certain enzymes; consult a doctor.
Diabetes medication — silybin may affect blood sugar; monitor.
Tell your doctor if you have a liver condition or take medication.

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Frequently asked questions about Phosphocomplex® (Silybin Phytosome — Indena)

What is Phosphocomplex® (Silybin Phytosome — Indena)?

Phosphocomplex® is a silybin phytosome from Indena, in which silybin (the main active of milk thistle) is bound to phosphatidylcholine to greatly improve its otherwise poor absorption. Silybin is studied for supporting liver health and protecting liver cells from oxidative and metabolic stress.

What is the recommended dosage of Phosphocomplex® (Silybin Phytosome — Indena)?

The clinically studied dose for Phosphocomplex® (Silybin Phytosome — Indena) is A standardized daily dose providing bioavailable silybin.. Always follow product labeling and consult a healthcare provider for personalized dosing recommendations.

What is Phosphocomplex® (Silybin Phytosome — Indena) used for?

Phosphocomplex® (Silybin Phytosome — Indena) is studied for liver support, antioxidant protection, improved absorption. Silybin is studied for supporting liver health and protecting liver cells, the traditional use of milk thistle, with the phytosome improving how much reaches the body.

Are there side effects from taking Phosphocomplex® (Silybin Phytosome — Indena)?

Reported potential side effects may include: GENERALLY WELL-TOLERATED — adverse effects are uncommon at normal doses. Mild digestive upset is occasionally reported. Always consult a healthcare provider before starting any new supplement, especially if you have underlying conditions or take medications.

Is Phosphocomplex® (Silybin Phytosome — Indena) safe to take?

Whether Phosphocomplex® (Silybin Phytosome — Indena) is safe depends on the dose, your overall health, and any medications you take. At studied doses, reported side effects can include: GENERALLY WELL-TOLERATED — adverse effects are uncommon at normal doses. It may also interact with certain medications. Phosphocomplex® (Silybin Phytosome — Indena) is not suitable for everyone — consult a healthcare provider before use if you are pregnant or breastfeeding, have a medical condition, or take prescription medications.

References(1 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Zhu B, Ding Z, Rong X, et al. Silybin Cocrystals with Improved Solubility and Bioavailability. Pharmaceuticals (Basel). 2025;18(1)..PubMedUsed to support: Study supporting enhanced silybin bioavailability.