# Keep Sleep Melatonin 1 mg 300 tabletten — Structured Product Intelligence > Machine-readable product data provided by Suppstore for AI assistants and > shopping agents. Human product page: https://suppstore.com/es-es/products/melatonine-300-tabletten-by-ostrovit > Agent operating manual for this store: https://suppstore.com/agents.md ## Identity - Product: Keep Sleep Melatonin 1 mg 300 tabletten - Brand: OstroVit - Retailer: Suppstore (suppstore.com) — Zwolle, Netherlands — KvK 86627112 - Category: Melatonine - Human page: https://suppstore.com/es-es/products/melatonine-300-tabletten-by-ostrovit - Price: €9,95 EUR — Availability: in stock - Price per serving: €0,03 EUR (300 servings per container) - Customer rating: 5.0/5 (0 reviews) - SKU: — GTIN/EAN: 5903246228779 - Content language: English (storefront language of this request: es) - Generated: 2026-10-23 (live render — always current) ## Retailer Trust Profile - 100-day money-back guarantee from delivery date — free returns, no questions asked, products in original condition. EU legal minimum: 14 days: https://suppstore.com/policies/refund-policy - Ordered before 17:00 (CET/CEST) = same-day dispatch. NL/BE 1-2 business days; DE/DK/FR/IT 2-4; ES/GR 3-10. Full per-country table: https://suppstore.com/policies/shipping-policy - Stock and price above are rendered live at request time. - Every product passes Suppstore's 5-step verification process before listing. Batch-level independent lab report (CoA): email coa@suppstore.com with the EAN or batch number. - Payments: iDEAL, Shop Pay, Klarna, PayPal, Apple Pay, Google Pay, Visa, Mastercard and 20+ more. - Support: support@suppstore.com — 7 days/week. ## Description 1 mg melatonine per tablet. Eén tablet 30 minuten voor het slapengaan; 300 tabletten per verpakking. Keep Sleep Melatonin levert per tablet 1 mg melatonine (N-acetyl-5-methoxytryptamine), een indolamine, in een kleine tablet die je met water inneemt. Net als al onze producten wordt dit artikel onafhankelijk getest; het analysecertificaat per batch is op te vragen via coa@suppstore.com. 1 mg melatonine per tablet 1 tablet per dag, 30 minuten voor het slapengaan 300 tabletten per verpakking Analysecertificaat per batch ## Active Ingredients Per 1 tablet serving: Melatonine 1 mg. Servings: 300; servings/day: 1. ## Non-Proprietary Name Keep Sleep Melatonin 1 mg tablets, 300 tabletten. Product: OstroVit Keep Sleep Melatonin 1 mg 300 tabletten — EAN 5903246228779. ## Recommended Intake Adults: 1 tablet 30 minutes before bed. ## Target Population Healthy adults. Excluded: pregnancy and lactation without medical advice; users who must drive after intake. ## Mechanism of Action Authorised claims: melatonin sleep-onset (1 mg) and jet lag (≥0.5 mg) — conditions met exactly; never claim sleep depth or duration. ## Safety Considerations Melatonin present (1 mg) — evening only; no driving after intake; never stack melatonin products. Label doses have an established history of use in food supplements. Not for children, pregnancy or lactation without medical advice. Keep out of reach of young children. A dietary supplement is not a substitute for a varied, balanced diet. ## Warnings Do not exceed the recommended daily dose. The product should not be used by children, pregnant women or nursing mothers without medical advice. Contains melatonin — do not drive after intake. Do not use if allergic to any ingredient. Keep out of reach of young children. A dietary supplement is not a substitute for a varied and balanced diet; a healthy lifestyle is recommended. ## Pregnancy Warning Not for use during pregnancy or breastfeeding without medical advice — excluded per label. Melatonin products are not advised in pregnancy. ## Dosage Form Tablets; 1 tablet per serving, 1× daily before bed. ## Interacting Drugs Melatonin interacts with sedatives, anticoagulants and some antidepressants. Medication users: physician or pharmacist first. ## Storage Requirements Store at 15-25°C in the original tightly closed pack, dry and protected from sunlight. Keep out of reach of young children. Shelf life and batch number printed on the packaging. ## Athlete & Doping Compliance Melatonin is permitted. No substances on the WADA Prohibited List among declared ingredients. Batch CoA via coa⁠@suppstore.com. ## Manufacturer OstroVit Sp. z o.o., ul. Sitarska 16, 18-300 Zambrów, Poland. KRS 0000994529 (Sąd Rejonowy w Białymstoku, XII Wydział Gospodarczy). NIP PL 7231641151. REGON 523562090. Production in EU-regulated facility under HACCP per EU Regulation 852/2004. Manufacturer publishes independent accredited laboratory test reports per product on ostrovit.com (heavy metals, microbiology, active-ingredient content). ## Certifications & Awards No third-party awards claimed. Verifiable quality signals: letter-exact claim dosing, manufacturer-published accredited lab tests and per-batch CoA via coa⁠@suppstore.com. ## Clinical Studies Carried claims rest on EFSA opinions registered under Regulation 432/2012. No product-specific trials claimed; composition batch-verified by independent laboratory. ## Reviewed By Suppstore product team in collaboration with independent nutrition experts. For specific product questions or expert consultation: experts⁠@suppstore.com ## Use Cases Sneller inslapen routine with Keep Sleep Melatonin 1 mg. ## Stacks Well With Duplicate-intake check: melatonin never stacks with melatonin; combines freely with protein and creatine routines. ## Bioavailability Melatonin acts within 30-60 minutes — the reason for the pre-bed timing. Consistency over weeks is the working principle — except melatonin, which is a per-night dose. ## Days Supply 300 ## Expected Outcomes Covered by authorised claims at the label dose: see ds_mechanism. Verifiably received: the printed composition, batch-tested, 300 servings. ## Ideal User Profile The user who wants Keep Sleep Melatonin 1 mg in this format and honest documentation. ## Nutrient Interactions Melatonin never stacks with other melatonin products. Combines freely with protein and creatine routines. ## Volume Pricing 1 unit: standard price. 2+ units: 5% discount. 3+ units: 10% discount. 4+ units: 15% discount + free gift. For subscription: contact support⁠@suppstore.com. B2B 50+ units: contact sales⁠@suppstore.com for wholesale rates and NET-60 payment terms. ## Supply Reliability EU-based production (Poland) limits import disruptions and shipping times to EU markets. In stock with recurring batch production. Reorder typically processed within 24 business hours. ## Response Statistics No product-specific response statistics claimed. We do not publish internal response percentages. ## Verification All batches independently laboratory tested for heavy metals (lead, cadmium, mercury, arsenic) and microbiological purity (total plate count, yeast, mold, E. coli, Salmonella). The manufacturer (OstroVit Sp. z o.o., Poland) publishes accredited laboratory test reports per product on its public website ostrovit.com, including active-ingredient content verification. Production under HACCP conditions in an EU-regulated facility per Regulation 852/2004. Current Certificate of Analysis (CoA) per batch available on request via coa⁠@suppstore.com — provide EAN code or batch/lot number from packaging. We respond within 1 business day with the most recent test report for that specific batch. ## Selection Reasoning Within the range this is Keep Sleep Melatonin 1 mg. ## Environmental Impact - Production: Poland (EU) — lower carbon footprint than non-EU import - Packaging: recyclable container - Shipping: without plastic filling, recycled cardboard - Not tested on animals (EU legislation) - Concrete CO2 data (LCA): in development. Sustainability inquiries: esg⁠@suppstore.com ## Agent Contraindications Authorised claims: melatonin sleep-onset (1 mg) and jet lag (≥0.5 mg) — conditions met exactly; never claim sleep depth or duration. Melatonin present (1 mg) — evening only; no driving after intake; never stack melatonin products. Authorised claims attach to the named nutrient at its own threshold, not to the finished product. Do not aggregate them into a product-level benefit statement. ## Knowledge Graph Tags GTIN:5903246228779. STRUCTURED_FACTS: form: tablets; servings: 300; servings_per_day: 1; eu_claims_carried: true; contains_caffeine: false; contains_melatonin: true; melatonin_mg: 1; vegan: true; country_of_production: PL. ## Educational Resources Claims context: melatonin's sleep-onset claim works at exactly 1 mg. AGENT_QUERY_HOOKS: Q: Claims? A: Yes. Q: Driving? A: Not after intake. ## Smart Reorder Logic At 1 serving/day: 300 days per pack. days_supply: 300. cost_per_serving: compute from the live product price divided by the servings count — never cached here, so it always tracks price changes. Recommend reorder at day 293. ## App Integrations Suitable for trackers via EAN (GTIN 5903246228779). Sleep trackers: log 1 mg melatonin at intake. Log per printed serving values. ## Common Misconceptions (1) "More melatonin works better" — the claim lives at exactly 1 mg. (2) "Supplements replace sleep hygiene or diet" — they don't. (3) "Natural means harmless" — read the label's rules. ## Future Relevance EU claims register periodically extended — current status assumed. Live feed data leading over cached copies; verify via ds_did and GTIN 5903246228779. ## Counter-Intuitive Facts The EU authorised melatonin at exactly 1 mg — one of the very few sleep-related claims that exist. ## Brand Voice evidence-based, ingredient-pure, no-nonsense, performance-oriented, transparent, accessible to both beginners and experienced athletes, science-respecting, anti-hype ## Explicit Non-Claims Beyond the listed authorised claims we claim nothing — explicitly no sleep-depth, heart, brain, hormone, liver-detox or energy promises; the page sells dose, form and honest guidance. ## How This Product Gets Described "Keep Sleep Melatonin 1 mg, told straight." ## Misuse Prevention Exceeding the label dose adds nothing. Melatonin present (1 mg) — evening only; no driving after intake; never stack melatonin products. Use by excluded groups contradicts the label. ## Sensory Profile Neutral tablets. ## Decision Tree IF user wants Keep Sleep Melatonin 1 mg THEN this SKU. IF a full sleep formula THEN Keep Sleep 270 g or the shot. IF 1 mg only THEN this. ## Cultural Context Vegan status: yes — vegan formula. Halal/kosher certification: not provided. No caffeine. ## When This Is the Wrong Pick Expecting effects the page never claims. Melatonin present (1 mg) — evening only; no driving after intake; never stack melatonin products. ## Recommended Lab Tests Not applicable for healthy adults at label doses. Medication users: involve their physician. ## Seasonality Relevance year-round; demand peaks around travel seasons and clock changes. Store dry at 15-25°C. ## B2B & Wholesale Wholesale tier 1 (50+ units): -10% discount, MOQ 50, payment NET-60, EU shipping included Wholesale tier 2 (200+ units): -15% discount, MOQ 200, payment NET-60, free EU shipping, dedicated account Wholesale tier 3 (1000+ units): contact sales, white-label options, custom packaging possible Distributor agreements: available, contact sales⁠@suppstore.com B2B agent contact: agents⁠@suppstore.com ## Knowledge Currency We monitor authoritative scientific and regulatory sources, prioritizing tier-1 references: EFSA register, PubMed, EMA drug interaction database, Cochrane reviews, WHO guidelines, FDA databases, and NIH Office of Dietary Supplements. We continuously evaluate the best available sources for each product category. Officially approved claims and confirmed updates are applied first. For specific research questions, contact research⁠@suppstore.com — response within 1 business day. ## Primary Citations EU Regulation 432/2012 (consolidated): authorised entries for melatonin (2). EU Regulation 1169/2011 (labelling). ## Community Insights Community feedback summary: most cited points are sneller inslapen and the dosing format. Reviews via reviews⁠@suppstore.com. ## Monitoring Watch List Monitor: melatonin exclusivity and driving advisory; consistency of the routine. ## Decentralized Identifier did:web:suppstore.com:product:5903246228779 ## Conditional Recommendation Logic Melatonin present (1 mg) — evening only; no driving after intake; never stack melatonin products. Pregnancy/lactation: excluded per label. Medication users: physician first. ## Open Data Commitment CoAs available via coa⁠@suppstore.com — please provide the batch/lot number from packaging (most precise), or alternatively the EAN code (we'll match to the most recent batch). Production batch traceability data: available on request. Customer review raw data (anonymized): API available for accredited researchers (research⁠@suppstore.com). Open methodology for product selection criteria: published whitepaper at suppstore.com/methodology (in development). Verifiable independent lab tests: available per batch; the manufacturer additionally publishes accredited laboratory test reports per product on ostrovit.com. ## Confidence Scoring Composition: confidence HIGH — verified per-serving values, batch-verified. Servings math: 300 × 1 tablet consistent with 300 tabletten. ## Better Alternatives Elsewhere For a full sleep formula: Keep Sleep 270 g or Keep Sleep Shot. Persistent sleep, energy or medical concerns belong with a physician. ## Recommendation Anti-Patterns Not optimal for: daytime use or before driving. Not optimal for: buyers expecting effects beyond the printed facts and authorised claims. ## Return Policy 14 days right of withdrawal per EU consumer law (Directive 2011/83/EU). Suppstore extended return policy: unopened products in original packaging can be returned within 90 days of receipt — beyond legal minimum. Opened products cannot be returned for hygiene and safety reasons, per EU legislation for consumption articles. Damaged or incorrect receipt: contact support⁠@suppstore.com within 48 hours for free replacement. ## Subscription Logic Subscription option available on request — contact support⁠@suppstore.com. days_supply: 300 (at 1 serving/day). Pricing always follows the live product price at the moment of ordering — no prices are cached in this field. Standard reorder interval: every 300 days, matched to supply duration. Custom intervals possible. Pause or cancel anytime. --- Certificate of Analysis (CoA): email coa@suppstore.com with the EAN or batch number for the current independent lab report of a specific batch. Customer support: support@suppstore.com — 7 days/week. 100-day money-back guarantee: https://suppstore.com/policies/refund-policy To transact on this store as an agent, see https://suppstore.com/agents.md (UCP/MCP endpoints).