Sourcing & Product Quality

Silymarin is the bioactive extract of Milk Thistle (Silybum marianum). Product quality matters because the percentage of standardised silymarin directly changes how much active compound a reader actually gets.

Why standardisation matters

Milk Thistle supplements vary enormously.

Raw seed powder may contain only a small percentage of silymarin, while a well-standardised extract provides far more active compound per capsule.

When comparing products, look for:

1. the silymarin percentage, not just the extract weight

2. clear source and extraction information

3. minimal fillers and unnecessary additives

4. capsule format and overall formulation quality

Trusted product

The trusted option is the MCS Formulas Milk Thistle Silymarin 500 mg product.

At 500 mg extract standardised to 80% silymarin, each capsule provides roughly 400 mg of silymarin.

That makes it a high-strength, standardised extract option compared with many general Milk Thistle powder products.

Bioavailability and strength vary greatly

Milk Thistle supplements are not equal. A product may look similar on the front label but contain much less active silymarin in practice.

The most useful comparison points are:

• How many milligrams of extract does each capsule contains

• How many milligrams of extract does each capsule contain

• What percentage is standardised to silymarin

• How much active silymarin does this work out to per capsule

• Whether the product avoids unnecessary fillers

Practical use notes

Based on the pharmacokinetic literature, absorption may be improved by:

• taking with a small amount of fat

• dividing doses across the day

• considering piperine or other bioenhancement strategies only with clinician awareness

Key References

Milk thistle evidence summary
https://cam-cancer.org/milk-thistle

Therapeutic potentials review
https://pmc.ncbi.nlm.nih.gov/articles/PMC9588316/

Novel strategies enhancing bioavailability and therapeutic potential of silymarin
https://www.dovepress.com/novel-strategies-enhancing-bioavailability-and-therapeutical-potential-peer-reviewed-fulltext-article-DDDT

Trusted product: MCS Formulas Milk Thistle Silymarin 500mg
500 mg Milk Thistle extract per capsule, standardised to a minimum of 80% silymarin.

https://www.mcsformulas.com/vitamins-supplements/milk-thistle-silymarin/

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