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Moumoujus

LINUM USITATISSIMUM HULL EXTRACT.

Insufficient Data CAS 8001-26-1 / SKIN CONDITIONING

Derived from flaxseed hulls, Linum Usitatissimum Hull Extract offers multifaceted skin benefits, primarily focused on hydration, barrier support, and antioxidant protection. It is recognized for its ability to form a breathable moisture-locking film and support extracellular matrix remodeling.

Summary

Hydrating Antioxidant Anti-inflammatory Barrier support Soothing Wound healing Extracellular matrix remodeling

Science

Mechanism of Action

Linum Usitatissimum Hull Extract operates through several mechanisms to enhance skin health. Its rich content of mucilage and polysaccharides creates a protective, breathable film on the skin's surface, effectively locking in moisture and reducing transepidermal water loss. Omega-3 fatty acids bolster the skin barrier function, further contributing to hydration and resilience. The extract also provides antioxidant protection, combating free radical damage that can lead to premature aging. Furthermore, specific components like phytosterols and unsaturated fatty acids within flax fiber extracts have demonstrated in vitro capabilities to activate cell migration and proliferation, alongside increasing matrix metalloproteinase activity, suggesting a role in wound healing and extracellular matrix remodeling.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

Data does not indicate this ingredient is commonly 'dusted' in formulations; no specific dusting threshold or red flag percentages are available from research.

The Formula

Formulation

Solubility
Both
Optimal pH N/A
0 7 14

Stability

While a specific optimal pH range for cosmetic formulation stability is not defined, studies on flaxseed mucilage extraction suggest stability over a range of pH values (e.g., high yield at pH 6.75 and quality macromolecule extraction at pH 9.69). Standard considerations for botanical extract preservation and overall product stability should be applied during formulation.

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) has not specifically reviewed 'LINUM USITATISSIMUM HULL EXTRACT'. While 'Linum Usitatissimum Seed Extract' is generally considered safe with extremely low risks of irritation or allergies and is non-comedogenic, some animal studies on 'Linum Usitatissimum (Linseed) Seed Extract' have indicated irritation at moderate doses. Oral/dermal/inhalation toxicity for the hull extract is currently 'Not determined' by some sources. Overall, the ingredient is generally perceived as safe for topical use, but specific regulatory guidance for the hull extract is pending.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Insufficient Data

While Linum Usitatissimum Hull Extract offers promising in vitro evidence for hydration, antioxidant activity, and extracellular matrix remodeling, more human topical clinical studies are needed to definitively establish its efficacy.

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