Key Takeaways
Crocetin-Powered Formula
Contains 7.5mg of crocetin, a rare carotenoid from gardenia fruit (only 0.4% of dried fruit) that supports quality sleep without relying on melatonin or sedatives.
Simple Once-Daily Routine
Take just 1 softgel capsule after dinner. The easy-to-swallow capsule makes consistent daily use effortless for long-term sleep support.
Quality & Safety Assured
Manufactured by Kobayashi Pharmaceutical in Japan. Free from artificial colors, flavors, and preservatives. Contains vitamins B1, B2, D, and E.
Japan's First of Its Kind
The first functional food in Japan registered (F454) specifically for addressing age-related decline in sleep quality, backed by clinical research.
Best For
Adults experiencing middle-of-night awakenings, shallow sleep, or morning fatigue due to aging. Ideal for those seeking a non-melatonin solution.
Clinically Validated
Research shows crocetin reduces nocturnal awakenings, increases deep sleep stages, and decreases morning drowsiness after 2 weeks of use.
Is This Right For You?
Recommended For
Naitmin Sleep Support is a sleep aid not melatonin, designed for adults seeking natural support for age-related sleep quality decline and middle-of-night awakenings.
If you're experiencing frequent middle-of-night awakenings that disrupt your sleep quality and leave you feeling unrested
If you wake up feeling tired despite sleeping adequate hours and want to improve sleep depth naturally
If you're an adult concerned about age-related decline in sleep quality and depth as you get older
If you're seeking natural, non-habit-forming sleep support without the drowsiness of stronger medications
If you struggle with feeling unrefreshed upon waking in the morning despite getting enough hours of sleep
If you're looking for a sleep aid not melatonin that works with your body's natural sleep mechanisms
If you're an adult experiencing reduced restorative sleep due to aging and want evidence-backed support
If you want to improve sleep maintenance without pharmaceutical sleep aids or hormonal supplements
Why It Works
Benefits
Naitmin delivers sleep support through crocetin, a naturally-derived functional ingredient with clinically demonstrated benefits.
Reduces Middle-of-Night Awakenings
Crocetin has been clinically shown to reduce the frequency of nocturnal awakenings. By indirectly inhibiting histamine H1 receptors (a key wakefulness signal in the brain), crocetin helps you stay asleep longer without the grogginess associated with sedative sleep aids.
Clinically validated (Phytomedicine, 2010)Supports Deeper Sleep Quality
Clinical research demonstrates that crocetin supplementation increases delta wave activity during deep sleep stages and enhances overall sleep architecture. This leads to more consolidated, restorative sleep cycles that help you wake feeling genuinely refreshed.
Research-backed ingredientEases Morning Fatigue & Drowsiness
Participants in clinical trials reported reduced feelings of fatigue and drowsiness upon waking after taking crocetin for 2 weeks. Unlike some sleep aids that leave you groggy, Naitmin supports natural sleep without morning side effects.
Consumer validatedComprehensive Vitamin Support
Beyond crocetin, Naitmin includes vitamins B1 (10mg), B2 (12mg), D (20-71mcg), and E (50mg) to support energy metabolism, nervous system function, and overall wellness.
Nutritional Functional FoodThe Science
How It Works
Understanding how Naitmin's crocetin supports your body's natural sleep processes.
Crocetin's Sleep Mechanism
Histamine is a key wakefulness-promoting neurotransmitter. When histamine binds to its receptors, it promotes alertness and arousal.
Crocetin's indirect inhibition of this pathway helps reduce the brain's wakefulness signals, allowing for deeper, more sustained sleep without forcing sedation.
Three Key Benefits for Sleep
- Deepens sleep quality by supporting natural sleep architecture
- Reduces morning drowsiness so you wake feeling alert
- Eases morning fatigue for a more refreshed start to your day
Addressing Age-Related Sleep Decline
Naitmin was specifically developed as the first functional food to address this age-related decline in sleep quality.
The Science
Research & Evidence
Clinical evidence supporting crocetin as a functional ingredient for sleep quality.
Clinical Trial Results—A randomized, placebo-controlled, double-blind crossover study with 25 adults (aged 25-59) showed the crocetin group had reduced nocturnal awakening frequency compared to placebo after 2 weeks of 7.5mg daily intake.
Age-Related Sleep Pattern Changes—Data from Japan's Ministry of Health showing how deep sleep decreases and light sleep increases with age, making middle-of-night awakenings more common.
A Note on Evidence: We present research on ingredients, not specific product claims. Individual results may vary. This supplement is not intended to diagnose, treat, cure, or prevent any disease.
Ingredient Research
CROCETIN
Crocetin is a carotenoid compound naturally found in gardenia fruit and saffron. Clinical research has demonstrated its potential to support quality sleep by reducing middle-of-night awakenings, enhancing deep sleep stages, and easing morning fatigue through indirect inhibition of histamine H1 receptors.
Phytomedicine, 17, 840-843, 2010The Story
About Brand Story
Kobayashi Pharmaceutical Co., Ltd.
With over 150 brands spanning OTC pharmaceuticals, supplements, oral care, and household products, Kobayashi is known for iconic products like Netsusama Sheet cooling pads, Inochi no Haha women's health supplements, and Bluelet toilet cleaners — all featuring distinctively descriptive Japanese product names.
Our Curation Process
Why We Selected This Product
Every product at Naturacare undergoes rigorous evaluation before joining our collection.
革新性
Innovation
Japan's first functional food registered specifically for age-related sleep quality decline. Naitmin represents a pioneering approach to sleep support that doesn't rely on melatonin or sedatives.
信頼性
Reliability
Backed by Kobayashi Pharmaceutical, a trusted Japanese healthcare company. The product carries functional food registration F454, meaning its claims have been reviewed and accepted by Japan's Consumer Affairs Agency.
自然
Natural Approach
Uses plant-derived crocetin from gardenia fruit rather than synthetic compounds or hormones. Free from artificial colors, flavors, and preservatives, aligning with our commitment to natural wellness solutions.
Our Promise: We don't just import popular Japanese supplements - we investigate each product's formulation, manufacturing standards, and real-world reputation in Japan.
Naitmin earned its place in our collection because it offers a genuinely different approach to sleep support. For customers seeking a sleep aid not melatonin, this crocetin-based formula provides clinically-backed benefits through a natural mechanism.
Why Japan
The Japanese Advantage
Japan's supplement industry operates under some of the world's strictest quality standards. Combined with a cultural dedication to craftsmanship and centuries of wellness traditions, Japanese supplements represent a level of quality that's difficult to find elsewhere.
Rigorous Quality Standards
Japanese regulations require comprehensive testing at every stage of production, with standards that often exceed international requirements.
GMP-Certified Manufacturing
All our products come from facilities that meet Japan's strict GMP (Good Manufacturing Practice) certification requirements.
Centuries of Tradition
Many Japanese supplements draw on ingredients and formulations refined over generations, combining ancient wisdom with modern science.
Transparent Sourcing
Japanese manufacturers maintain complete traceability, so you know exactly where every ingredient comes from.
Directions
How to Use
Simple once-daily routine for optimal sleep support.
Consume after dinner in the evening for optimal effectiveness.
Swallow the capsule whole; do not chew or break open. Use consistently for at least 2-4 weeks to experience full benefits.
Do not exceed the recommended daily dosage of 1 capsule.
Tips for Best Results
- Take consistently at the same time each evening after dinner
- Do not exceed 1 capsule daily - the 7.5mg crocetin dosage is optimized for effectiveness
- Maintain good sleep hygiene: consistent bedtime, dark room, limited screens before bed
- Allow 2-4 weeks of consistent use for noticeable improvements in sleep quality
- Store in a cool, dry place away from direct sunlight and humidity
- Vitamin B2 may cause harmless yellowing of urine - this is normal and not a concern
What's Inside
Ingredients
Clean formula with a focused functional ingredient and supporting vitamins.
Crocetin
Carotenoid from gardenia fruit, functional ingredient
Vitamin B1
Supports energy metabolism
Vitamin B2
Supports energy metabolism
Ingredients: Gelatin (manufactured in Japan), vitamin E-containing vegetable oil, safflower oil, glycerin, vitamin B2, gardenia (source of crocetin), vitamin B1, glycerin fatty acid ester, phytic acid, vitamin D
Allergen Information: Contains: Gelatin. Free from: Fish, shellfish, eggs, milk, wheat, peanuts, soybeans, tree nuts, sesame.
Important Information
Safety & Precautions
Please read before use.
Allergies
Not suitable for individuals with allergies to gelatin or any ingredients listed. Carefully review the full ingredient list before consumption.
Age Restrictions
Not intended for infants, children, or adolescents under 18 years of age.
Pregnancy & Nursing
Not recommended for pregnant women, those planning pregnancy, or nursing mothers. This product was not developed for these populations.
Medications
If you have any medical conditions or are taking medications, consult your physician before use.
Dosage
Do not exceed the recommended daily dosage of 1 capsule. The 7.5mg crocetin amount is clinically optimized - taking more does not enhance benefits.
Discontinue Use
Discontinue use immediately and consult a doctor if you experience any adverse reactions.
Storage
Store in a cool, dry place away from direct sunlight and humidity. Keep out of reach of children.
Regulatory Information
This product is registered as a Food with Function Claims (届出番号: F454) with Japan's Consumer Affairs Agency. It has not undergone individual review by the Agency. This product is not intended to diagnose, treat, cure, or prevent any disease.
Details
Product Specifications
Questions
Frequently Asked Questions
It's an effective sleep aid not melatonin for those seeking alternatives.
For those wanting to avoid both melatonin and GABA supplements, Naitmin offers a unique evidence-backed alternative.
However, consult your doctor if you have chronic insomnia.
Many find this sleep aid not melatonin gentler and less likely to cause morning grogginess.
Some people notice improvements in sleep quality within the first week, while others find the effects build over time with consistent daily use.
Unlike stronger sleep medications or some melatonin supplements, Naitmin works with your body's sleep cycle rather than forcing sedation.
However, good sleep hygiene practices should also be maintained for best long-term results.
Taking more does not enhance benefits and may result in unnecessary vitamin intake. Consistency over time is more important than higher doses.
As a curated Japanese wellness retailer, we bring you authentic products from trusted manufacturers like Kobayashi Pharmaceutical that may not be readily available outside Japan.
It contains no sedatives, no melatonin, and no habit-forming ingredients.