Soybean oligopeptide is a mixture of small-molecule polypeptides prepared from soybean protein via enzymatic hydrolysis or microbial fermentation. It is generally composed of 2 to 6 amino acids with a molecular weight mostly ranging from 500 to 1000 Da. It possesses core advantages including excellent water solubility, high biocompatibility, easy skin absorption and low sensitization potential. Meanwhile, it retains high-quality amino acid components in soybean protein, making it a natural and safe functional raw material for daily chemical products.
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Guar gum\Soybean Oligopeptide COA
Applications in Skin Care Products
Skin care products represent the most extensive application field of soybean oligopeptide. With its multiple skin care benefits, it has been widely incorporated into various skin care formulations such as essences, facial masks, lotions and creams, delivering targeted care for moisturizing, anti-aging, skin repair, whitening and other skin care demands.
In moisturizing skin care products, the molecular structure of it contains a large number of hydrophilic groups (amino groups and carboxyl groups), which can form hydrogen bonds with water molecules and create a breathable moisturizing film on the skin surface to reduce transepidermal water loss. Its small-molecule structure can penetrate into the stratum corneum, bind with keratinocytes, strengthen the skin's natural water-locking capacity, and improve dry and rough skin texture. For instance, adding 3%-4% the product to moisturizing lotion can reduce skin Transepidermal Water Loss (TEWL) by 20%-30%, with moisturizing effects lasting 6 to 8 hours. Incorporating 15%-20% the product into moisturizing facial masks can rapidly replenish skin moisture, repair the skin barrier, and keep the skin hydrated and plump.
In anti-aging skin care products, it exerts anti-wrinkle and skin-tightening effects through synergistic multiple mechanisms. On one hand, it directly acts on dermal fibroblasts in the skin, activates collagen synthesis signaling pathways, promotes the production of type I and type III collagen as well as elastic fibers, increases dermal thickness, and diminishes fine lines and dry lines. On the other hand, it inhibits the activity of Matrix Metalloproteinases (MMPs) to reduce collagen degradation, scavenges Reactive Oxygen Species (ROS) in the skin, enhances the activity of skin antioxidant enzymes (SOD, GSH-Px), delays oxidative skin aging, and alleviates skin sagging. Experimental data show that continuous use of essence containing 5%it for 4 weeks can increase skin collagen content by 15%-20% and reduce wrinkle depth by 10%-15%, which is suitable for anti-aging care of sensitive skin.
In skin repair products, it promotes the proliferation and differentiation of stratum corneum cells, regulates the synthesis of stratum corneum lipids (ceramides, cholesterol), and repairs damaged skin barriers.
It is especially suitable for compromised skin types including sensitive skin, inflamed skin and post-procedure skin. It can relieve skin discomforts such as redness, itching and dryness, and reduce skin sensitivity. Additionally, it boosts skin microcirculation, increases oxygen and nutrient supply to the skin, accelerates the excretion of metabolic waste, improves dull and rough skin, and restores skin to a healthy state.
In whitening skin care products, it inhibits tyrosinase activity to block melanin synthesis, reduces the production of melanin precursors, accelerates skin metabolic turnover, and promotes the shedding of existing melanin, thereby achieving whitening, freckle-fading and skin tone evening effects. Multiple studies have proven that it can significantly inhibit melanin production in vitro, with whitening effects enhanced in a dose-dependent manner. Long-term application improves dull complexion and pigmentation. Its inherent antioxidant property also protects the skin from oxidative damage during whitening care.
Information source: Institute of Agricultural Information, Chinese Academy of Agricultural Sciences, A Litchi and Soybean Oligopeptide Facial Mask and Its Preparation Method; Peptide Featured Article, Whitening and Anti-Aging from Within? Soybean Peptide - An Overlooked Natural Skin Care Expert!.
Applications in Hair Care Products
Besides skin care products, it also has broad application prospects in the field of hair care. Its small-molecule structure can penetrate into the hair cortex to supplement amino acid nutrients required by hair, while forming a protective film on the hair surface. It ameliorates dryness, frizz, split ends and brittleness, achieving the effects of nourishing, repairing and smoothing hair.
In basic hair care products such as shampoos and conditioners, soybean oligopeptide can partially replace chemical hair care ingredients, reduce irritation to the scalp and hair, replenish nutrients for the scalp, regulate the scalp microenvironment, alleviate scalp dryness and itching, and reduce dandruff production.
Its hydrophilic groups can adsorb moisture to form a moisturizing film on the hair surface, lock in hair moisture, improve dry and frizzy hair, and leave hair soft, smooth and glossy. It also enhances hair toughness to reduce split ends and breakage. It is particularly ideal for damaged hair (such as perm and dyed hair), helping repair chemical damage and restore hair health.
In intensive nourishing hair care products such as hair masks and hair care oils, it can be compounded with natural oils (shea butter, olive oil, etc.) to exert synergistic nourishing effects. It penetrates deep into the hair cortex to supplement essential nutrients, repairs damaged hair cuticles, and makes hair tougher and more elastic. It also mitigates hair damage caused by external factors such as ultraviolet rays and high temperature, prolonging healthy hair condition. Furthermore, it possesses certain anti-static properties, reducing static electricity and hair tangling to enhance the comfort of hair care.
Information source: Food Business Network, Functions, Uses, Dosage and Price of Soybean Oligopeptide; seoulsister.com, Soybean Peptide.
Applications in Infant Daily Chemical Products
Infant skin is delicate with an underdeveloped skin barrier, making it prone to allergies, dryness, eczema and other problems caused by external irritation. Hence, infant daily chemical products demand extremely high mildness and safety standards. Featuring low sensitization, high biocompatibility and mild nourishment, it serves as an ideal raw material for infant daily chemicals, widely applied in infant body wash, moisturizing cream, diaper rash cream and other products.
Adding 1%-2% it to infant body wash can partially replace chemical surfactants, lower irritation to infant skin, and form a protective film on the skin surface to reduce moisture loss during bathing.
It prevents post-bathing dryness and tightness, realizing mild cleansing alongside nourishing care and meeting the cleansing needs of delicate infant skin.
In infant moisturizing cream and diaper rash cream, it is compounded with natural oils (shea butter, petrolatum, etc.) to gently moisturize infant skin, promote keratinocyte proliferation, repair the skin barrier, and reduce transepidermal water loss. It relieves infant skin dryness and peeling, alleviates common skin issues such as diaper rash and eczema, and provides comprehensive protection for infant skin against external irritant damage. With high safety and non-irritation, it imposes no burden on infant skin and is suitable for long-term use.
Information source: Xi'an Haotian Bioengineering Co., Ltd., Main Uses of Soybean Peptide; seoulsister.com, Soybean Peptide.
At present, the application of soybean oligopeptide in daily chemical and personal care fields has become increasingly mature. Many domestic and international daily chemical brands adopt it as a core functional ingredient and launch a series of skin care, hair care and infant daily chemical products containing it, covering mid-to-high-end market segments to meet diverse consumer demands. With continuous technological advancement, the extraction process of it has been optimized. Technologies including two-stage enzymatic hydrolysis with compound enzymes, membrane separation and freeze-drying have improved its purity and activity while cutting production costs, further promoting its popularization and application in the daily chemical industry.
In the future, driven by the growing consumer demand for natural, green and multi-functional daily chemical products, the application of it will present three major development trends:
Efficacy Precision: Screen specific active peptide fragments via technical means to develop targeted skin and hair care products adapted to different skin types and care needs.
Compound Synergy: Combine it with ceramides, hyaluronic acid, vitamin C derivatives and other ingredients to achieve synergistic enhancement and improve product efficacy.
Diversified Application Scenarios: Expand from existing fields to more personal care sectors such as oral care and body care, including toothpaste, body lotion, hand cream and other products to further broaden its application scope.
Meanwhile, as consumers pay increasing attention to ingredient safety and naturality, the product, as a functional ingredient of natural plant origin, will unlock greater market potential and become one of the key development trends in the daily chemical industry.
Information source: Xi'an Haotian Bioengineering Co., Ltd., Transdermal Absorption and Anti-Wrinkle Efficacy of Soybean Peptides in Cosmetics; X Platform, Soybean Compound Functional Factor, Its Preparation Method and Application in Cosmetics; seoulsister.com, Soybean Peptide.
Special Notes for Industrial Application
Daily Chemicals: Prioritize cationic / hydroxypropyl modified guar gum to enhance transparency and conditioning effect; avoid ordinary guar gum which causes turbidity and skin irritation.
Pharmaceuticals: Must comply with the standards of the Chinese Pharmacopoeia, with stricter control over heavy metals and microorganisms. For oral preparations, label with: "Dietary fiber; excessive intake may cause abdominal distension".
Information source: Chinese Pharmacopoeia 2025 Edition; Technical Specification for Cosmetic Safety (2022).
FAQ
Is guar gum good for IBS?
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Bottom line Fibre supplemented diet and guar gum supplementation equally improved symptoms of irritable bowel syndrome. Hydrolysed guar gum was preferred by more patients and should be considered when patients with the syndrome can't tolerate fibre or report a worsening of their symptoms with fibre.
How inflammatory is guar gum?
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Conclusions. This study collectively demonstrates that refined guar gum may heighten the intestinal inflammation in patients with IBD.
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