Enhanced Sleep Formula

product on market Capsule GNC Preventive Nutrition 🟢 Safety: 100/100
Brand: GNC Preventive Nutrition
🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 44% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

2 Capsule(s) Serving Size
30 Servings
Other Combinations Product Type
44% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C
30 mg (50% DV)
2 mg (100% DV)
✅ 1.5× RDA — within safe limits 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 2mg UL 100mg
100 mcg (25% DV)
✅ Within RDA (0.2× RDA of 0.4 mg) 📚 225 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 0.1mg UL 1.0mg
20 mg (5% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 20mg
10 mg (67% DV)
✅ Within RDA (0.9× RDA of 11 mg) 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 10mg UL 40mg
Calming & Relaxing Complex
400 mg
Sleep Support Blend
205 mg
Antioxidant Replenishment Blend
50 mg
Circulation Optimizing Blend
30 mg

Other Ingredients

Cellulose Gelatin Stearic Acid Magnesium Stearate Silicon Dioxide Titanium Dioxide FD&C Blue #1

Label Claims — Verification

❓ All Other
❓ Structure/Function
All Other (99% of products) Structure/Function (83% of products) Nutrient (54% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free Dairy Free Sugar Free

Product Information

📋 Directions for Use

Directions: As a dietary supplement, take two capsules before bedtime.

⚠️ Warnings & Precautions

Keep out of reach of children.

Warning: For adult use only at bedtime. This product is not to be taken by pregnant or lactating women. If you are taking medication or have a medical condition, consult a physician before using this product.

Do not use in conjunction with alcoholic beverages, when driving a vehicle, or operating machinery.

🧪 Formulation Notes

~ Features premium sleep support blend with melatonin

No sugar, no artificial flavors, no wheat, gluten free, no soy, no dairy.

Additional Information

Store in a cool, dry place.

Scientifically Formulated Nutrition Solutions

~ Promotes a sense of calm & relaxation

Scientifically Formulated

CODE 706711 IRG

Conforms to USP <2091> for weight. Meets USP <2040> disintegration.

GF Gluten Free

Product Details

UPC / SKU 0 48107 17307 4
DSLD Entry Date 2017-01-25
Product Type Other Combinations
Form Capsule
Brand GNC Preventive Nutrition
DSLD ID 70152
Data Updated 2026-04-11

Research Evidence

371 Research Sources
54 Avg Quality Score
148 Meta Analysis
82 Systematic Review
71 Rct
62 Clinical Trial
2 Regulatory Source
1 Cochrane Review
1 Narrative Review
1 Other
1 Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
PubMed DOI Cochrane
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017
PubMed DOI Cochrane
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013
PubMed DOI Cochrane
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013
PubMed DOI Cochrane
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020
PubMed DOI Cochrane
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021
PubMed DOI Cochrane
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024
PubMed DOI
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024
PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021
PubMed DOI
View all evidence for Vitamin C →

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