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Moumoujus

CITRUS UNSHIU PEEL WATER.

Valuable / SKIN PROTECTING

CITRUS UNSHIU PEEL WATER is a botanical extract derived from the peel of the Unshiu mandarin, celebrated for its rich flavonoid content. This ingredient is recognized for its multifaceted skin benefits, including potent antioxidant and anti-inflammatory properties, alongside its ability to promote skin brightening and hydration.

Summary

Antioxidant Skin brightening Anti-inflammatory Hydrating Collagen booster Anti-photoaging

Science

Mechanism of Action

Acting as a formidable skin protector, Citrus Unshiu Peel Water leverages its high concentration of antioxidants and flavonoids (such as naringin and hesperidin) to neutralize free radicals and stimulate cellular regeneration. It intervenes in melanin synthesis by inhibiting tyrosinase, leading to brighter skin. Its anti-inflammatory action reduces redness and calms irritation by decreasing inflammatory mediators. Furthermore, it enhances skin hydration by improving moisture content and reducing transepidermal water loss. The flavonoids also contribute to anti-aging by boosting collagen synthesis and mitigating photoaging effects through the reduction of MMP-1 (matrix metalloproteinase-1) mRNA expression in UVA-exposed human dermal fibroblasts.

Research

Clinical Evidence

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 In vitro studies demonstrated that flavonoids from C. unshiu peel (at 2.5-5 μg/mL) effectively reduced inflammatory mediators and pro-inflammatory cytokines, while simultaneously boosting antioxidant enzyme activity in LPS-stimulated RAW 264.7 macrophages.
  2. 02 Oral administration of a green mandarin extract containing narirutin (300 mg/day) for 12 weeks clinically improved skin roughness associated with periorbital wrinkles in human patients, suggesting systemic skin benefits.
  3. 03 Further oral studies in UV-B irradiated hairless mice showed that C. unshiu powder significantly increased skin moisture content and decreased transepidermal water loss, alongside reduced basement membrane degradation and epidermal hyperplasia.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

Optimal pH range for stability is not explicitly defined in current research. However, various studies utilize aqueous extractions, sometimes involving acid hydrolysis (e.g., pH 2.0) or buffered solutions (e.g., pH 6.6, 7.5), indicating its components are stable and active across a range of pH environments.

Conflicts

  • Trace amounts of essential oil components within Citrus Unshiu Peel Water may potentially cause minor irritation in individuals with extremely sensitive skin types, though this is generally considered a low risk for most users.

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Low

No specific CIR, SCCS, or FDA regulatory status was found for CITRUS UNSHIU PEEL WATER. However, in vitro and in vivo experimental evidence indicates that Citrus unshiu peel exhibits no genotoxicity and minimal systemic toxicity. While citrus essential oils are generally considered safe in cosmetic formulations, highly sensitive individuals might theoretically experience mild irritation due to trace components, although this is uncommon for the water extract.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

CITRUS UNSHIU PEEL WATER is a valuable botanical active, offering comprehensive antioxidant, anti-inflammatory, brightening, and hydrating benefits for diverse skin types with a generally favorable safety profile.

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