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More Than Just Sun Protection — ShieldBiso™ M Enables Multi-Layered UV Defense

2025-07-23

Suzhou Sunland Pharmaceutical technology co.,ltd is a leading cosmetics raw material manufacturer specializing in the production of sunscreens, skin whitening agents, anti-aging solutions, and tanning accelerators. With a strong focus on quality, innovation, and sustainability, we strive to provide our clients with the highest quality ingredients for their cosmetic formulations.

This time we will explain our star sunscreen products in detail--Methylene Bis-Benzotriazolyl Tetramethylbutylphenol(ShieldBiso™ M).

It is a hybrid ultraviolet filter that breaks through the tradition and has the dual advantages of chemical and physical sun protection.With its unique molecular structure, ShieldBiso™ M can efficiently absorb and reflect ultraviolet rays in UVA and UVB bands, which significantly improves the photostability and broad spectrum of sunscreen.

Compared with the traditional organic sunscreens in the market, which are mostly non-nanoparticles, ShieldBiso™ M combines physical and chemical sunscreen characteristics, while maintaining excellent protective performance, it has excellent skin feel and compatibility, is not white and greasy, and is suitable for various skin types and application scenarios, including daily skin care, sports sunscreen and high-index products.

Below is an efficacy evaluation based on its characteristics and performance in sunscreen formulations:

Technical ID Card

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Photoprotection Efficacy

Broad-Spectrum UV Protection:

ShieldBiso™ M provides protection across the UVA and UVB spectrum. Its dual nature as a physical and chemical filter ensures it effectively absorbs and scatters UV radiation.

High Absorption Efficiency:

It has a high molar extinction coefficient, meaning it can absorb significant UV radiation with relatively low concentrations.

Stable Under UV Exposure:

Unlike some organic filters, ShieldBiso™ M exhibits excellent photostability, maintaining its effectiveness over extended sun exposure without significant degradation

Broadest Absorption Spectrum

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Highest critical wavelength CW of 388nm (alone)

the first UV filter using micro fine organic particle technology

Broadest UV protection due to microfine particles

Protection reaches into the visible range

Photostability

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It is showed that every sunscreen product under study was exposed for the same time to a natural sunlight from 10 a.m. to 15 p.m. The outdoors exposure was performed during a clear sunny day in late May, in Juiz de Fora city, latitude 21o46´39.0´´S, longitude 43o22´00.7´´W and altitude 796.89m above sea level. 

According to the picture,only formulations F1 and F4 were considered photostable, since they presented AUCI higher than 0.8, of (0.91 and 0.96,respectively).

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Formulation Benefits

Hybrid Nature:

As a microfine particulate, it combines the benefits of inorganic filters (like scattering and broad-spectrum coverage) with those of organic filters (high absorption).

Compatibility with Other Filters:

ShieldBiso™ M is compatible with various organic and inorganic filters, enhancing the overall SPF and UVA-PF of formulations.

Synergistic Effects:

When combined with other filters (e.g., Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine or Avobenzone), it stabilizes and boosts their performance.

Safety Profile

Low Skin Penetration:

The particulate size of ShieldBiso™ M ensures minimal absorption into the skin, making it safe for long-term use.

Non-Irritating and Non-Allergenic:

Studies indicate it is well-tolerated on sensitive and reactive skin types, suitable for both adults and children.

Reduced Phototoxicity Risk:

Its photostability minimizes the generation of reactive oxygen species (ROS) under UV exposure.

Cosmetic Properties

Non-Greasy Feel:

Despite its particulate nature, ShieldBiso™ M can be incorporated into formulations to provide a lightweight and non-oily texture.

Transparency:

When properly dispersed, it contributes to transparent formulations, avoiding the whitening effect common in mineral filters like titanium dioxide or zinc oxide.

Water Resistance:

ShieldBiso™ M enhances the water-resistance properties of sunscreen formulations.

Regulatory Aspects

Approved in regions such as the EU, Asia, and Australia.Maximum allowable concentration varies by region (up to 10% in the EU).

Regulatory limitations in certain markets (e.g., not approved in the USA) may affect global formulation strategies

Summarize

With the global skin care market moving towards high efficiency, safety and environmental protection, ShieldBiso™ M is becoming the key component of the next generation of sunscreen products with its hybrid structure with both chemical and physical sunscreen advantages. It not only has excellent broad-spectrum light protection ability and excellent formula compatibility, but also shows great concern for skin safety and environmental friendliness.

As a manufacturer of cosmetic raw materials with R&D as the core and quality as the foundation, Suzhou Sunland has always been at the forefront of technological innovation, and is committed to providing reliable solutions and full-process technical support to customers around the world. We know that behind every successful product, high-quality raw materials and reliable supply chain are indispensable.

We sincerely invite global skin care brands, OEM/ODM factories and formulators to cooperate with Suzhou Sunland to explore the infinite possibilities of ShieldBiso™ M in different application scenarios. Whether you are building a lightweight daily sunscreen or developing a high-magnification professional-grade sunscreen product, we will provide you with customized technical materials, sample support and regulatory guidance.

The choice of ShieldBiso™ M not only selects a sunscreen ingredient, but also endows your products with more professional, more stable and longer-term competitiveness.

Please contact us to start cooperation and create a brand-new future of skin care technology.The choice of ShieldBiso™ M not only selects a sunscreen ingredient, but also endows your products with more professional, more stable and longer-term competitiveness.

Please contact us to start cooperation and create a brand-new future of skin care technology.