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Moumoujus

SILYBUM MARIANUM POWDER.

Valuable CAS 84604-20-6 / SKIN CONDITIONING

Silybum Marianum Powder, derived from Milk Thistle, is a multifaceted skincare ingredient recognized for its potent antioxidant and anti-inflammatory properties. It effectively shields skin from environmental stressors, calms irritation, supports barrier health, and aids in brightening skin tone, making it suitable for a wide array of skin concerns.

Summary

antioxidant anti-inflammatory agent uv-protectant skin conditioning skin brightening sebum regulating skin barrier support

Science

Mechanism of Action

This ingredient functions primarily through its active compound, silymarin, which acts as a powerful antioxidant by neutralizing free radicals, thereby protecting skin cells from oxidative stress induced by UV radiation and pollution, which are common causes of premature aging. Its anti-inflammatory action involves inhibiting inflammatory mediators like TNF-α and IL-1a, effectively reducing redness, irritation, and swelling associated with conditions such as eczema, psoriasis, and rosacea. Furthermore, Silybum Marianum Powder contributes to a stronger skin barrier, enhancing hydration and resilience, and can help balance sebum production, benefiting oily and blemish-prone skin. It also works to diminish the appearance of hyperpigmentation and dark spots for a more even skin tone, while offering protective benefits against the harmful effects of solar UV radiation.

Research

Clinical Evidence

Medium confidence
Effective range 0.5–20%
Optimal

0.5%

Key findings

  1. 01 Topical silymarin ointments at concentrations of 5%, 10%, and 20% demonstrated efficacy in treating diabetic wounds.
  2. 02 Recommended usage concentrations for incorporation into defensive day creams and moisturizers.
  3. 03 Formulations containing 10% silymarin achieved SPF values up to 9, indicating UV-protective capabilities.

Transparency

Dusting Analysis

Not commonly dusted
Min. effective
0.1%
Red flag below
0.1%

Effective concentrations for Silybum Marianum Powder in general skincare formulations typically begin at 0.5%. While higher concentrations up to 20% demonstrate significant therapeutic benefits, claims made for products containing less than 0.1% active ingredient should be critically evaluated for actual efficacy.

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Silybin, a key component of silymarin, exhibits robust stability under Brønsted acidic conditions but its integrity is compromised by Lewis acids or basic environments. Prolonged thermal exposure exceeding 100°C can also disrupt its structure. The powder itself is insoluble in water, necessitating specific formulation strategies to enhance its bioavailability in aqueous systems, but is soluble in methanol, ethanol, and acetone.

Conflicts

  • Lewis acids
  • basic conditions
  • prolonged heating over 100°C

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Low

Silybum Marianum Extract is generally considered safe and non-irritating for topical application at industry-standard concentrations. However, individuals with known sensitivities or allergies to plants in the daisy, ragweed, or chrysanthemum families should exercise caution. While significant systemic drug interactions for silymarin are not widely documented, prudence is advised when co-administered with narrow therapeutic window medications.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

Silybum Marianum Powder is a valuable ingredient, offering broad-spectrum benefits from potent antioxidant and anti-inflammatory actions to barrier support, brightening, and UV protection, making it highly versatile for diverse precision skincare formulations.

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