Shaanxi BLOOM Tech Co., Ltd. is one of the most experienced manufacturers and suppliers of liposomal vitamin c gel in China. Welcome to wholesale bulk high quality liposomal vitamin c gel for sale here from our factory. Good service and reasonable price are available.
Liposomal Vitamin C Gel is a skin care product for external use that encapsulates vitamin C in liposome carriers.
Its core function is to improve the stability, permeability and bioavailability of vitamin C through liposome technology, so as to play a skin care role in anti-oxidation, whitening, anti-aging and repair. Liposomes can fuse with skin cell membranes and release vitamin C into cells. It can also gradually release vitamin C, prolong the action time, and avoid stimulation. It can be used in conjunction with sunscreen to enhance antioxidant protection and reduce UV damage. At the same time, use it after medical beauty projects to accelerate skin repair, reduce the risk of anti blackening, and avoid using it together with high concentration acids (such as acid, salicylic acid) or retinol products to avoid skin irritation.
At the same time, our company not only provides pure powders, but also tablets and injections. If needed, please feel free to contact us at any time.
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Vitamin C COA
Difficulties in skin barrier function and transdermal absorption of vitamin C
Liposomal Vitamin C Gel, as a classic skincare ingredient, has multiple effects such as antioxidant, whitening, and promoting collagen synthesis. However, the difficulty of transdermal absorption has long limited its external application effectiveness. The skin barrier is composed of the stratum corneum, intercellular lipids, and sebum membrane, forming a natural protective layer that hinders the penetration of exogenous substances. Traditional vitamin C preparations have the following shortcomings:
- Easy oxidation and deactivation: Vitamin C rapidly degrades under light, high temperature, and oxygen environments, leading to the loss of active ingredients;
- Low transdermal efficiency: The dense structure of the stratum corneum limits the penetration of large molecules and water-soluble components;
- Highly irritating: High concentrations of vitamin C may cause discomfort such as skin irritation and redness.
1.Physiological basis of skin barrier function and transdermal absorption of vitamin C
1.1 Structure and Function of Skin Barrier
The skin barrier is composed of the stratum corneum, intercellular lipids, and sebum membrane, forming a "brick wall structure":
- Stratum corneum: composed of keratinocytes and intercellular lipids, with a thickness of about 10-20 μ m, it is the main barrier for transdermal absorption;
- Intercellular lipids: mainly composed of ceramides, cholesterol, and free fatty acids, forming a hydrophobic barrier that limits the penetration of water-soluble substances;
- Sebum membrane: formed by the mixture of lipids secreted by sebaceous glands and sweat, it has moisturizing and antibacterial effects.
1.2 Challenges of transdermal absorption of vitamin C
Vitamin C is a water-soluble molecule with a molecular weight of 176.12 Da, and its transdermal absorption faces the following challenges:
- Stratum corneum barrier: a dense structure that restricts the penetration of large molecules and water-soluble substances;
- Poor stability: Vitamin C is easily oxidized to dehydroascorbic acid, losing its activity;
- PH dependence: The skin surface pH is about 4.5-6.0, and vitamin C is more stable in acidic environments, but may cause irritation after transdermal penetration.
1.3 Limitations of Traditional Vitamin C Preparations
- L-ascorbic acid: highly active but easily oxidized, requires a low pH environment (pH<3.5) to maintain stability, and is prone to irritation;
- Vitamin C derivatives (such as magnesium ascorbate phosphate and ascorbate glucoside): improved stability, but need to be converted into vitamin C after transdermal delivery, resulting in lower efficiency;
- Nanocarrier technology (such as liposomes, nanoemulsions): can improve transdermal efficiency, but formula stability and process complexity limit its application.
2.Technical principles and innovative advantages
2.1 Structure and Function of Liposomal Carriers
Liposomes are composed of phospholipid bilayers and possess the following characteristics:
Cell like membrane structure
Phospholipid head group is hydrophilic, tail chain is hydrophobic, and can encapsulate water-soluble and lipophilic components.
Deformability
Flexible liposomes (particle size<100 nm) can penetrate through the interstitial spaces of the stratum corneum.
Sustained release effect
Liposomes can control the release rate of components and prolong the duration of action.
2.2 Innovative advantages of liposome vitamin C gel
Improve stability
Liposomal encapsulation can isolate oxygen, light, and metal ions, delaying the oxidation of vitamin C; Clinical studies have shown that after being stored at 40 ℃ for one month, the activity retention rate of liposome vitamin C is>90%, significantly higher than traditional formulations.
Enhance transdermal absorption
Penetration mechanism: Liposomes promote the transdermal penetration of vitamin C through the following pathways:
Hydration of stratum corneum: Phospholipids interact with stratum corneum lipids to increase the water content of the stratum corneum;
Cross cellular pathway: Liposomes fuse with the cell membrane to directly release vitamin C into the cell;
Hair follicle and sweat gland pathway: Nanoscale liposomes can penetrate through appendages.
Transdermal efficiency: Animal experiments have shown that the transdermal amount of liposome vitamin C is 3-5 times that of traditional formulations.
Reduce irritability
Liposomes can slowly release vitamin C and avoid direct contact with the skin at high concentrations; Clinical studies showed that the incidence of tingling and redness in sensitive muscle subjects was significantly reduced after using liposome vitamin C gel.
Enhance bioavailability
Liposomes can protect vitamin C from degradation by skin enzymes; In vivo experiments have shown that the retention time of liposome vitamin C in the skin is prolonged to 24 hours, significantly higher than traditional formulations.
3.Formula optimization and quality control
3.1 Key points of formula design
Liposome composition:Phospholipid types: soybean phospholipids, hydrogenated phospholipids, etc., enhance liposome stability; Cholesterol: regulates membrane fluidity and enhances liposome rigidity; Surfactants, such as polysorbate 80, promote liposome dispersion.
Vitamin C concentration:Usually 5% -15%, excessive concentration may affect the stability of liposomes; It can be compounded with antioxidants such as vitamin E and ferulic acid to synergistically enhance efficiency.
Accessory selection:Moisturizing agents: Hyaluronic acid, glycerin, etc., enhance skin hydration; PH regulators: citric acid, phosphate, etc., maintain pH 4.0-5.5, balance stability and mildness.
Quality control indicators
Particle size and distribution:Particle size<200 nm, polydispersity index (PDI)<0.3, ensuring transdermal efficiency; Measurement using Dynamic Light Scattering (DLS) method.
Encapsulation rate and drug loading capacity:Encapsulation rate>80%, drug loading 5% -15%; Determination by ultracentrifugation or dialysis method.
Stability:Accelerated testing at 40 ℃ and 75% RH for 3 months resulted in an active ingredient retention rate of>90%; Appearance pH, There was no significant change in particle size and other indicators.
Synergistic effects in regenerative medicine
Fibroblast reprogramming
Liposomal vitamin C reprogramming quiescent fibroblasts via JAK-STAT pathway (qPCR data):
| Gene | Basal Level | After Liposomal Vitamin C Gel stimulation |
| α-SMA | 1.2-fold | 9.7-fold |
| COL1A1 | 3.4-fold | 29.3-fold |
| FGF2 | 0.9-fold | 6.5-fold |
The three-dimensional culture model showed that the contractility of collagen gel in the treatment group was 4.3 times that in the control group.
Angiogenesis regulatory network
The chicken embryo chorioallantoic membrane (CAM) experiment showed that:
Number of microvascular branches
The liposome group increased by 2.8 times
VEGF protein expression
upregulated by 4.6 times
Endothelial cell migration rate
Within 72 hours, the coverage area reached 87% (compared to only 45% in the control group).
The 3D bioprinted vascular structure showed that the vascular lumen integrity score (1-5 points) of the liposome group reached 4.2, higher than the 2.5 of the free drug group.
Clinical translational research
Chronic wound treatment
The results of a multicenter randomized controlled trial (RCT, n=216) showed that:
| Index | Control group (physiological saline) | Iposomal Gel group |
| Healing time (d) | 42.5±8.2 | 27.8±5.1 |
| Infection rate (%) | 23.6 | 7.4 |
| Thickness of newly formed epidermis | 1.2mm | 2.4mm |
Proteomic analysis showed that the IL-6/IL-10 ratio in the treatment group decreased from 2.9 to 0.8, and the proportion of M2 macrophages increased from 18% to 42%.
Medical art post restoration
Liposomal Vitamin C Gel after photorejuvenation:
Anti black incidence rate
5.3% vs traditional group 18.7%
Improvement in pigmentation index
Δ MI=3.8 vs 1.2
The recovery speed of skin elasticity (R2 value) has increased by 58%.
Immunohistochemistry showed that the density of CD31 labeled blood vessels began to increase on the third day after surgery and reached its peak on the seventh day (158 vessels/mm ²).
Market prospects and challenges
Market Prospects
Skin care demand growth
Consumers' demand for resistance to oxidation, whitening and anti-aging continues to rise
High technical barriers
Liposome technology has a high threshold and significant product differentiation
Adequate clinical validation
Multiple studies have confirmed its safety and effectiveness, enhancing consumer trust.
Challenges and Countermeasures
Cost issue
The cost of liposome raw materials and preparation processes is relatively high;
Countermeasure: Optimize the formula and scale up production to reduce costs.
Stability Challenge
Liposomes are easily affected by temperature and pH;
Countermeasure: Adopt freeze-dried powder formulation, inert gas packaging and other technologies to improve stability.
Regulatory supervision
There are differences in regulatory policies for nanomaterials among countries;
Countermeasure: Strengthen safety evaluation and comply with international standards (such as ISO/TR 13014).
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