SKU: 99121237078

Nutritional Frontiers Sleep Time 60 caps

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Description

Nutritional Frontiers Sleep Time 60 capsDescription The Sleep Time formulation, to be taken 1 hour before bed, is designed to improve problems with sleep.* Sleep Time was formulated to help support the neurotransmitters dopamine and serotonin, which have a role with sleep cycles and anxiety.* Neurotransmitters are natural chemical messengers in the nervous system that send signals from one nerve cell across a synapse to another nerve cell or target organ. Serotonin plays a role in sleep,

Description

The Sleep Time formulation, to be taken 1 hour before bed, is designed to improve problems with sleep.* Sleep Time was formulated to help support the neurotransmitters dopamine and serotonin, which have a role with sleep cycles and anxiety.*

Neurotransmitters are natural chemical messengers in the nervous system that send signals from one nerve cell across a synapse to another nerve cell or target organ. Serotonin plays a role in sleep, mood, intestinal function, pain control, and inflammation. Dopamine plays a role in cognitive function, memory, learning, and pleasure. In our bodies, dopamine is released as a result of rewarding experiences. Certain nutrients and amino acids may help to balance levels of neurotransmitters by providing co-factors that assist in the body’s ability to manufacture neurotransmitters.*

Benefits

About the Ingredients
Gamma aminobutyric acid (GABA)
 is a naturally occurring amino acid that works as a neurotransmitter in your brain. Neurotransmitters function as chemical messengers. GABA is considered an inhibitory neurotransmitter because it blocks, or inhibits, certain brain signals and decreases activity in your nervous system. When GABA attaches to a protein in your brain known as a GABA receptor, it produces a calming effect. This can help with feelings of anxiety, stress, and fear. It may also help to prevent seizures. As a result of these properties, GABA has also become a popular supplement in recent years. This is partly because it isn’t available from many food sources.

L-Taurine- is an essential amino acid is a GABA-receptor agonist, meaning it produces a GABA-like effect in the body. GABA is a sedating, inhibitory neurotransmitter. In animal studies, application of taurine with GABA, or taurine with glycine produced stronger effects than taking either glycine or GABA alone. Taurine is can be used to enhance sleep quality.

Suntheanine® (L-Theanine) stimulates activity in the brain known as alpha waves, which are associated with a relaxed but alert mental state. Human clinical trials have shown Suntheanine® to promote an alert state of relaxation without drowsiness, as indicated by an increase in Alpha brain waves, and a decrease in Beta brain waves. Suntheanine® is protected by over 40 U.S. and international patents for its various physiological efficacies and L-isomer specific production processes.

L-Glycine- is a non-essential amino acid. It has been used to protect brain cells after ischemic stroke. Glycine is also thought to promote a sense of well-being and reduce anxiety. Research has shown that glycine can subjectively and objectively improve sleep quality. In a study where people’s sleep was restricted, glycine also reduced daytime sleepiness.

5-HTP- stands for 5- hydroxytryptophan, and is used by the body to make serotonin. 5-HTP is not found in food sources, the body manufactures 5-HTP from tryptophan, an amino acid found in dietary protein. Many conditions have been shown by studies to be helped by 5-HTP supplementation, including insomnia, depression, fibromyalgia, obesity (by reducing appetite), and headaches. 5-HTP should always be used under the supervision of a healthcare practitioner. In addition, the lowest possible dose should be used first and the dose should be titrated up slowly. 5-HTP should not be taken concurrently with pharmaceutical anti-depressants unless otherwise directed by your healthcare practitioner.

Vitamin B-5 (D-Calcium pantothenate)- is a water-soluble B vitamin with numerous biological roles. Vitamin B-5 is used by the body to manufacture, among other things, coenzyme A which is an important compound for energy metabolism and the production of fatty acids, cholesterol, and the neurotransmitter acetylcholine. D-Calcium pantothenate is the preferred, metabolically active form of B-5 used in higher quality nutritional supplements.

Vitamin B-6 (Pyridoxal 5-phosphate)- is a water-soluble B vitamin that performs many functions in the body. B-6 – dependent enzymes assist in the biosynthesis of the important neurotransmitters GABA, dopamine, serotonin, epinephrine, and norepinephrine. Pyridoxal 5-phosphate is the preferred, metabolically active form of B-6 used in higher quality nutritional supplements.

Melatonin- is a hormone naturally produced by the body to regulate circadian rhythm (sleep-wake cycle). Melatonin secretion may be disrupted by aging, hormonal changes, and night-time exposure to light, among other things. Melatonin supplements are well known for their ability to combat insomnia.

Supplement facts

Supplement Facts
Serving Size: 2 Capsules Servings Per Container: 30
Vitamin B6 10 mg
(as Pyridoxal-5-Phosphate)
Pantothenic Acid 10 mg
(as Calcium-D-Pantothenate) Gamma Amino Butyric Acid (GABA) 500 mg
Glycine 500 mg
Taurine 250 mg
L-Theanine (as Suntheanine®) 100 mg
5-Hydroxytryptophan (5-HTP) 50 mg
(from Griffonia simplicifolia Seed Extract)
Melatonin 3 mg

Other Ingredients: Hypromellose (Capsule), Rice Flour, Vegetable Stearate.

Warning: Consult a healthcare professional if you are pregnant or nursing, experiencing long-term sleep difficulties; before use in children; before use in those with a medical condition, and those taking medication. Do not drive or operate machinery when taking melatonin.

Suggested Use: As a dietary supplement, take 2 capsules one hour before bedtime, or as directed by your healthcare practitioner.

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SKU: 99121237078

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Anon
Bozeman, US
★★★★★ 3
Heavier fabric, very durable
Fit Type: Regular Fit, Color: Grey, Size: Large
3 stars. Pretty nice shirt but the fabric is a bit firmer than i like. I iron it when i usually wear it so that it looks half decent since wrinkle resistance is low or poor. I usually have to use a higher setting on the fabric since the material is thick making it alot heavier. Overall great for the lower end cost, anything that beats it would probably be double the price. I work in a cubicle so this works well for me, a simple shirt, with a simple color.
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Reviewed in the United States on March 18, 2026
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MMongelli
Phoenix, US
★★★★★ 5
True to size, good quality, great value!
Fit Type: Regular Fit, Color: White, Size: Medium
Great quality! Amazing thick material! Perfect basic button down shirt!
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Reviewed in the United States on December 14, 2025
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Ed
Cuba, US
★★★★★ 4
No Shirt Pocket!
Fit Type: Regular Fit, Color: Blue Stripe, Size: X-Large
No Pocket! The material was nice quality, a little thicker than I would have anticipate for a low priced shirt, and very soft. The only disappointment was there was not shirt pocket. I suppose I did not look closely enough at the photos to notice that before I purchased. Otherwise, this is a very comfortable shirt.
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Reviewed in the United States on February 23, 2026
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Mike
Massapequa, US
★★★★★ 5
Bought in multiple colors! Fantastic material
Size: X-Large, Color: Light Green, Size: X-Large, Color: Light Green
I ordered this button-up for an upcoming beach vacation, and I’m honestly so impressed with the quality and feel of it. Right out of the package, the material felt soft, breathable, and exactly what you want when you know you’ll be spending long hours in the sun and heat. It’s incredibly lightweight without feeling cheap or flimsy, which was one of my biggest concerns when ordering. What I really love is how well it helps keep you cool. The fabric allows for great airflow, so you don’t feel like you’re overheating or sweating through it like you might with heavier shirts. Even just trying it on, I could tell it’s going to be perfect for hot, humid weather. The fit is also spot-on—not too tight, not too baggy—giving it a clean, relaxed look that works great for both casual outings and slightly nicer dinners by the beach. Overall, this shirt checks all the boxes: comfortable, breathable, stylish, and ideal for vacation wear. Already grabbing a few more colors
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Reviewed in the United States on April 12, 2026
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MD Ochoa
Dallas, US
★★★★★ 5
Slim but comfortable sizing looks upscale, wrinkle free from the dryer
Size: Medium, Color: Denim Blue
This is a very nice upscale looking shirt. It has great styling that is not over-sized. My husband normally wears a medium or large depending on the cut/style. He got a medium in this size and it is a perfect, comfortable fit. It arrived with some creases in the material from being folded in the packaging but it came out beautifully from the dryer. I'm happy he has a casual but nice shirt to wear when he takes me out to dinner!
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Reviewed in the United States on May 14, 2026

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