Pyridoxal-5-Phosphate P5P Vitamin B6 Derivative - Active Vitamin B6 from China Suppliers & Factory
C8H10NPO6·H2O
Description
Pyridoxal-5-phosphate (P5P) is the active coenzyme form of vitamin B6 (pyridoxine) in the body (no need for liver conversion), directly involved in more than 100 enzymatic reactions, showing significant advantages in metabolic regulation, neuroprotection and anti-oxidation, and becoming the preferred ingredient for modern nutritional supplements.
Core Advantages Compared to Ordinary Vitamin B6
No need for metabolic conversion, fast onset
Ordinary vitamin B6 (pyridoxine) needs to be converted to P5P by the liver before it can work, and the conversion efficiency is affected by age, liver and kidney function and genetic polymorphism (such as ALPL gene mutations. The conversion rate decreases by 50%). P5P directly provides an active form, and its bioavailability is increased by more than 70%, which is especially suitable for people with metabolic disorders (such as the elderly and patients with liver disease).
High safety profile
High doses are safer, long-term high-dose supplementation of ordinary B6 (>50 mg/day) may cause peripheral neuropathy (due to accumulation of pyridoxine metabolites), while P5P does not have this risk. Clinical studies have confirmed that its safety is as high as 1000 mg/day (Eur J Clin Nutr, 2018).
Broad spectrum pH stability
P5P remains stable in gastric acid (ordinary B6 is easily degraded in an acidic environment), ensuring efficient intestinal absorption, and has no antagonistic effect when combined with minerals (such as magnesium and zinc).
Core Nutritional Health Effects
1. Amino acid and homocysteine metabolism
As a coenzyme of transaminase and cystathionine β-synthase, P5P catalyzes the conversion of homocysteine to cystathionine, reduces the homocysteine level in the blood (for every 1 mg increase in P5P, Hcy decreases by 15%), and reduces the risk of cardiovascular disease and cognitive decline.
2. Neurotransmitter synthesis and mood regulation
Directly participates in the synthesis of serotonin, dopamine, and GABA, improving anxiety, depression, and sleep quality. Clinical trials have shown that P5P (50 mg/day) can reduce the emotional symptoms of premenstrual syndrome (PMS) by 40% (J Womens Health, 2016).
3. Hemoglobin and immune support
Synergize folic acid and vitamin B12 to promote hemoglobin synthesis and prevent iron deficiency anemia; activate T lymphocyte proliferation and antibody production to enhance anti-infection ability.
4. Glycogen metabolism and hormone balance
Regulate glycogen decomposition and insulin sensitivity to assist blood sugar homeostasis; promote estrogen metabolism to reduce the risk of breast hyperplasia and gynecological tumors.
5. Antioxidant and skin health
Delay skin aging by removing free radicals and inhibiting the production of advanced glycation end products (AGEs); regulate sebaceous gland function to improve acne and seborrheic dermatitis.
Applicable Population
Metabolic sub-health population
Neurological needs (stress, sleep disorders)
Female group (PMS, hormone fluctuations)
Athletes and high-protein dieters
Frequently Asked Questions
What is the main difference between P5P and ordinary Vitamin B6?
P5P (Pyridoxal-5-phosphate) is the active coenzyme form of Vitamin B6. Unlike ordinary vitamin B6, which requires liver conversion and has lower efficiency, P5P is directly utilized by the body, providing over 70% higher bioavailability.
Is P5P safer than ordinary Vitamin B6 for high-dose use?
Yes. Long-term high doses of ordinary B6 (over 50 mg/day) can lead to peripheral neuropathy due to metabolite accumulation. In contrast, P5P does not carry this risk, with clinical studies confirming safety up to 1000 mg/day.
How does P5P support cardiovascular and cognitive health?
P5P acts as a coenzyme that assists in converting homocysteine to cystathionine, effectively lowering blood homocysteine levels (a 15% reduction for every 1 mg increase in P5P), which helps mitigate cardiovascular risks and cognitive decline.
Can P5P help with mood regulation and sleep?
Yes, P5P is directly involved in the synthesis of key neurotransmitters, including serotonin, dopamine, and GABA, which are essential for improving sleep quality, anxiety, depression, and premenstrual syndrome (PMS) emotional symptoms.
Why is P5P recommended for individuals with liver or metabolic issues?
Since the elderly and individuals with liver conditions or genetic mutations (like ALPL) have a significantly reduced capacity to convert ordinary B6 into its active form, P5P bypasses this metabolic step completely to ensure effective absorption.




