Appearance: White powder

Package:1kg per bag

MOQ:1kg

Shelf life: two years.

Storage conditions: Store in a cool, dry place at low temperature;

I. Core Efficacy

Lianbusu/Tetrapeptide-30 is a novel oligopeptide specifically developed to balance skin tone, delivering rapid and safe whitening effects through a multi-target mechanism. Its key benefits include:

Source-based whitening and melanin inhibition (Whitening & Melanin Inhibition): By suppressing the gene expression of tyrosinase, the number of tyrosinase enzymes is reduced; simultaneously, levels of melanocyte-stimulating hormone (α-MSH) and its precursor (POMC) are lowered, thereby inhibiting melanocyte activation at its source and reducing excessive melanin production and deposition.

Skin Brightening & Spot Fading: Rapidly improves dull and yellowish skin tone.  Clinical studies demonstrate that continuous use for 4 weeks significantly enhances skin uniformity, while after 8 weeks it effectively reduces age spots, sunspots, and freckles. 

Anti-inflammatory and anti-postinflammatory hyperpigmentation (Anti-inflammatory & Anti-PIH): By acting on keratinocytes, it significantly reduces the expression of UVB-induced inflammatory factors (such as IL-6, IL-8, and TNF-α), effectively mitigating post-inflammatory hyperpigmentation (PIH) and pigment deposition caused by photoaging.

Synergistic Effect: When used in combination with vitamin C derivatives (e.g., sodium ascorbate phosphate) or whitening ingredients such as phenethylresorcinol, it exhibits significant synergistic effects, further enhancing skin brightening results. 

II. Recommended Dosage and Scope of Use (Recommended Dosage & Application)

This ingredient exhibits high safety profile and no cytotoxicity, making it suitable for all skin types including sensitive skin. The recommended dosage in cosmetic formulations is as follows:

Conventional brightening and whitening products (Daily Brightening & Whitening): Recommended concentration range is 0.01%–0.01%.  Suitable for daily use in brightening serums, skin-lightening creams, eye creams, etc. 

Powerful Spot-Fading and Intensive Repair Products (Intensive Spot Fading): Recommended concentration range is 2.0%–8.0%.  Suitable for potent spot-fading creams targeting pigmentation and melasma, as well as foundation products such as brightening foundations and powder compacts. 

Scope of application: Highly recommended for use in various cosmetic formulations aimed at skin whitening, spot removal, skin brightening, anti-aging, and foundation applications.