Two Supplements
4L Solucoes makes peripheral nerve wellness supplements. We manufacture two products. Each contains one ingredient. No fillers. No proprietary blends. No unnecessary additions. Direct to customers who signed up through our website.
Methylcobalamin 2000mcg
Pure methylcobalamin, the biologically active form of vitamin B12. Methylcobalamin is directly involved in myelin sheath synthesis and nerve signal conduction. One ingredient, one capsule, verified potency. 90 capsules for a 3-month supply. Batch tested for identity, purity, and potency before release.
Benfotiamine 300mg
Pure benfotiamine, the fat-soluble derivative of vitamin B1 (thiamine). Achieves higher intracellular concentrations than water-soluble thiamine because it crosses cell membranes more efficiently. Studied in multiple published clinical trials at this dosage for nerve nutritional support. Single ingredient, full transparency. 90 capsules.
Published Studies We Referenced
We selected our ingredients and dosages based on published peer-reviewed research. We do not conduct our own clinical trials. We reference existing studies when choosing what to manufacture and at what concentrations.
For methylcobalamin, we reviewed studies examining its role in peripheral nerve function, myelin synthesis, and B12 deficiency correction. The 2000mcg daily dosage appears consistently in research examining nerve health applications.
For benfotiamine, we examined published clinical trials testing 300mg daily doses for peripheral nerve nutritional support. Multiple studies have used this specific dosage when investigating benfotiamine's bioavailability advantages over standard thiamine.
We provide these supplements based on published research. We make no health claims about our products. Customers should consult healthcare providers before use.
Single Ingredients Only
Each 4L Solucoes supplement contains one active ingredient. No blends. No additional compounds. No fillers beyond what is required for capsule manufacturing.
- Methylcobalamin capsules contain methylcobalamin and cellulose capsule
- Benfotiamine capsules contain benfotiamine and cellulose capsule
- No magnesium stearate, silicon dioxide, or other flow agents
- No artificial colors, flavors, or preservatives
- No proprietary blends with undisclosed ratios
This approach allows customers to know exactly what they are taking and in what amounts. It also allows for precise dosing based on individual needs and healthcare provider recommendations.
Batch Testing Protocol
Every batch of 4L Solucoes supplements undergoes third-party testing before release. We test for identity, purity, and potency. Testing occurs at an independent laboratory in Brazil.
| Test Type | Method | Specification |
|---|---|---|
| Identity | HPLC/UV | Matches reference standard |
| Potency | HPLC quantification | 90-110% of label claim |
| Purity | HPLC impurity profile | Individual impurities <0.1% |
| Microbiology | USP standards | Within specification limits |
Test results are available to customers upon request. We maintain certificates of analysis for all released batches.
No Proprietary Blends
4L Solucoes does not use proprietary blends. Every ingredient amount is disclosed on the product label. Customers can see exactly how much of each component they are receiving.
Proprietary blends allow manufacturers to hide individual ingredient amounts behind a total blend weight. This prevents customers from knowing if they are receiving effective amounts of specific compounds.
Our approach provides full transparency. Methylcobalamin capsules contain 2000mcg methylcobalamin. Benfotiamine capsules contain 300mg benfotiamine. No hidden amounts. No undisclosed ratios.
Direct Customer Access
4L Solucoes sells directly to customers who sign up through our website. We do not use distributors, retail stores, or third-party marketplaces. This direct relationship allows us to maintain quality control and customer communication.
Customers receive their supplements shipped directly from our facility in Itaquaquecetuba, SP, Brazil. We handle all customer service, technical questions, and order fulfillment internally.
This direct model eliminates markup layers and ensures customers receive authentic 4L Solucoes products with proper storage and handling throughout the supply chain.
From Lab to Doorstep
4L Solucoes controls the entire process from raw material sourcing to customer delivery. We manufacture in our facility in Itaquaquecetuba, São Paulo state, Brazil.
- Raw materials sourced from certified suppliers
- Manufacturing in cGMP facility
- Batch testing at independent laboratory
- Packaging in controlled environment
- Direct shipping to customers
- Temperature-controlled storage throughout
This vertical integration allows us to maintain consistent quality and ensure product integrity from production through delivery.
Brazilian Manufacturing Base
4L Solucoes Financeiras LTDA operates from Itaquaquecetuba, São Paulo state, Brazil. Our manufacturing facility meets Brazilian ANVISA requirements for supplement production.
Brazil has established regulatory frameworks for supplement manufacturing, including Good Manufacturing Practices requirements, facility registration, and product notification systems.
Our facility registration number is 48993437000101. We maintain all required certifications and undergo regular inspections to ensure compliance with Brazilian supplement manufacturing regulations.
Peripheral Nerve Nutrition Facts
Peripheral nerves require specific nutrients for optimal function. B vitamins play essential roles in nerve metabolism, myelin synthesis, and signal transmission.
Vitamin B12 exists in several forms. Methylcobalamin is the biologically active form found in nerve tissue. It serves as a cofactor for methionine synthase, which is involved in myelin sheath maintenance.
Vitamin B1 (thiamine) is essential for nerve energy metabolism. Benfotiamine is a fat-soluble derivative that crosses cell membranes more efficiently than water-soluble thiamine, potentially achieving higher intracellular concentrations.
These nutrients are involved in normal nerve function. Individual needs vary based on factors including diet, absorption capacity, and metabolic requirements.
SMS Updates
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Direct Questions
Q: How long do these supplements last?
Both products contain 90 capsules. At one capsule daily, each bottle provides a 3-month supply.
Q: Can these be taken together?
Both are B vitamins and can generally be taken together. However, consult your healthcare provider before combining supplements or starting any new supplement regimen.
Q: What is the difference between methylcobalamin and regular B12?
Methylcobalamin is the biologically active, coenzyme form of vitamin B12. Cyanocobalamin, the more common supplement form, must be converted to methylcobalamin in the body before it can function.
Q: Why benfotiamine instead of regular thiamine?
Benfotiamine is fat-soluble and crosses cell membranes more efficiently than water-soluble thiamine, potentially achieving higher intracellular concentrations.
Q: Do you ship internationally?
Currently, we ship only within Brazil. International shipping is not available at this time.
Q: How should these be stored?
Store in a cool, dry place away from direct sunlight. Room temperature storage is appropriate. Refrigeration is not necessary.
Contact Protocol
For technical questions about our supplements, manufacturing processes, or ingredient sourcing, contact our support team directly.
Email: [email protected]
Phone: +14138016492
Address: Rua da Industria, Itaquaquecetuba, SP 08577500, Brazil
We respond to technical inquiries within 48 hours. For order status questions, include your order number in your message.
4L Solucoes does not provide medical advice. For questions about whether these supplements are appropriate for your individual needs, consult your healthcare provider.