Frequently Asked Questions
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Once your order is placed and payment confirmed, you will receive a confirmation email with a tracking number. Check your inbox including spam and promotions folders. Click the tracking link to monitor your shipment. For questions, contact us at support@4ld.com.
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Subscribe to our newsletter and follow 4-LD Peptides on social media. We announce exclusive promotions, new product launches, and research community updates to subscribers first.
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We recommend using a physical address for reliable delivery. Contact us at contact@4ld.com with any specific delivery questions.
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Due to the nature of these research materials, all sales are final and we are unable to modify or cancel orders once placed. Please review your order carefully before completing checkout.
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Research peptides are synthesized amino acid sequences used exclusively for in-vitro laboratory study. They have no approved medical or therapeutic application. All 4-LD products are designed solely for scientific research — not for human or animal consumption.
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4-LD peptides are lyophilized for long-term stability. Store in a cool, dry place away from direct light. Once reconstituted with bacteriostatic water, refrigerate and use within the timeframe specified in your research protocol.
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We offer 100% secure checkout options including credit card, e-cheque, and cryptocurrency.
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Discreet delivery in 3–5 business days to any US address.
