Doctor Life Glycine 1000 mg — 100 capsules

Pack size: 100 capsules
Serving: 1–3 capsules

ShopAmino acids and proteins

Doctor Life

Glycine 1000 mg

Glycine for sleep and recovery

59,99 zł

Supports evening relaxation and sleep quality
Supports recovery after a demanding day
Supports next-day function after reduced sleep

Overview

A simple evening routine for winding down, sleep, and recovery. Glycine 1000 mg is made for adults who want to supplement this naturally occurring amino acid. Glycine has roles in the nervous system and in the synthesis of important compounds, including glutathione, creatine, and collagen.

At the heart of the formula / Glycine 1000 mg

Thoughtful support. Clear purpose.

01Supports evening relaxation and sleep quality
02Supports recovery after a demanding day
03Supports next-day function after reduced sleep
04Provides a precursor to glutathione and collagen
05A flexible serving to fit your daily routine
06A simple, focused formula

Doctor Life / 01

Glycine 1000 mg

Made for your daily routine.

Each capsule provides 1,000 mg of glycine. The recommended daily range is one to three capsules, with the maximum providing 3 g, an amount used in studies of sleep and next-day function.

The formula keeps glycine as its single active ingredient in a plant-based pullulan capsule. A clearly stated amount makes it easy to fit into an individual routine.

Doctor Life / 02

Glycine 1000 mg

Why does glycine matter?

Glycine is an amino acid involved in nervous system signaling and the production of glutathione, creatine, heme, and collagen. The body can make glycine, and food also supplies it. Researchers have explored supplemental glycine in relation to sleep and other metabolic processes.

Doctor Life / 03

Glycine 1000 mg

What research informs Glycine 1000 mg?

Small human studies have examined 3 g of glycine before bedtime in people dissatisfied with their sleep. They reported changes in selected measures of sleep quality and next-day fatigue, including during partial sleep restriction. Glycine is also one of the amino acids used to make glutathione. These findings support further research and do not establish a treatment for insomnia.

Ingredients / Doctor Life

Every ingredient. Clearly explained.

Each ingredient, its form and quantity — in one place.

Serving1–3 capsules

Ingredient amounts for the servings shown in the table.
Ingredient	1 capsule	2 capsules	3 capsules
Glycine	1000 mg	2000 mg	3000 mg

*NRV: Nutrient Reference Value

Full ingredient list

Glycine; capsule shell (bulking agent: pullulan).

How to use

Part of your daily rhythm.

How to use

Take 1–3 capsules daily, preferably on an empty stomach.

Important information

Do not exceed the recommended daily serving. Food supplements should not replace a varied diet. A balanced diet and a healthy lifestyle are recommended. Store at room temperature, away from sunlight and out of reach of young children.

Science & sources

Understand the formula.

These selected publications explore glycine in relation to sleep quality, next-day function after reduced sleep, and glutathione synthesis.

These publications concern the studied ingredients or formulas. They do not all evaluate the finished Doctor Life product, and research results do not guarantee individual outcomes.

01Glycine ingestion improves subjective sleep quality in human volunteers, correlating with polysomnographic changes

Wataru Yamadera, Kentaro Inagawa, Shintaro Chiba, Makoto Bannai, Michio Takahashi, Kazuhiko Nakayama

Sleep and Biological Rhythms (2007), 5, 126–131. DOI: 10.1111/j.1479-8425.2007.00262.x.

In a randomized crossover study, people dissatisfied with their sleep took 3 g of glycine before bedtime. Improvements in self-reported sleep quality and sleep efficiency, along with a shorter time to fall asleep, were observed. The study examined glycine as an ingredient at a dose matching this product's maximum daily serving.

Read publication ↗

02The Effects of Glycine on Subjective Daytime Performance in Partially Sleep-Restricted Healthy Volunteers

Makoto Bannai, Nobuhiro Kawai, Kaori Ono, Keiko Nakahara, Noboru Murakami

Frontiers in Neurology (2012), 3, 61. DOI: 10.3389/fneur.2012.00061; PMID: 22529837.

In a study in healthy people with restricted sleep, 3 g of glycine before bedtime was associated with less fatigue the next day and a trend toward reduced sleepiness. The findings contribute to research on glycine as part of an evening routine.

Read publication ↗

03Dietary Glycine Is Rate-Limiting for Glutathione Synthesis and May Have Broad Potential for Health Protection

Mark F. McCarty, James H. O’Keefe, James J. DiNicolantonio

Ochsner Journal (2018), 18(1), 81–87. PMID: 29559876; PMCID: PMC5855430.

This review describes glycine as one of three amino acids needed to synthesize glutathione and examines situations in which its availability may limit the process. The publication concerns the ingredient, not the finished product, and provides context for its metabolic role.

FAQ / Glycine 1000 mg

Good questions. Clear answers.

Talk to us ↗

Who is Glycine 1000 mg designed for?

It is designed for adults who want a straightforward glycine supplement, including those interested in adding it to an evening routine.

Why is sleep a focus of the product?

Small studies have explored 3 g of glycine before bedtime, with changes in selected sleep measures. The maximum recommended daily serving of this product also provides 3 g. Matching the amount does not guarantee the same result.

How do I choose between one and three capsules?

Take one to three capsules daily. Each provides 1,000 mg of glycine. Do not exceed three capsules daily.

When should I take glycine?

The recommended serving is one to three capsules daily, preferably on an empty stomach. If you choose to include it in an evening routine, take it consistently without exceeding the maximum daily serving.

How long does one bottle last?

Each bottle contains 100 capsules: a 100-day supply at one daily, 50 days at two, or 33 full days at three, with one capsule remaining.

Is it suitable for vegans and vegetarians?

Yes. Glycine 1000 mg uses a plant-based pullulan capsule and is suitable for vegans and vegetarians.

Can I combine glycine with medication or other supplements?

If you take medication, have a chronic condition, or use several supplements, ask your doctor or pharmacist to review the combination.

Doctor Life formulas