Compare every Glycine product across UK retailers on Suppio, ranked by true value - price per active dose, not pack size. Prices refreshed daily.
Amino acid supporting sleep quality, collagen synthesis, and gut health
We rank Glycine by price per gram of active ingredient - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
What it is
Glycine is an amino acid, which is a basic building block that the body uses to create proteins. It is one of the simplest amino acids found in the human body.
Why it's used
It is primarily used to support three main areas of health:
Sleep quality: Helping the body relax for better rest.
Collagen synthesis: Supporting the production of collagen, a structural protein that keeps skin, joints, and connective tissues strong.
Gut health: Maintaining the lining and function of the digestive system.
How it's made
To produce this supplement commercially, manufacturers typically use a process called fermentation. This involves using specific bacteria or yeast to break down a sugar source, which creates the glycine. The resulting liquid is then filtered and purified to isolate the amino acid, which is finally dried into a powder for use in capsules or tubs.
What it typically costs
Glycine is generally mid-range in price. This is because while the raw materials for fermentation are relatively common, the purification process required to ensure the powder is clean and safe for consumption adds to the overall production cost.
Dosage by purpose
Purpose
Typical studied dose
Evidence
lowering HbA 1c levels in people with diabetes
15 grams daily
emerging
boosting glutathione synthesis in elderly subjects
100 milligrams per kilogram of bodyweight per day
emerging
correcting glycine deficiency in individuals with severe obesity
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.
Amino acid supporting sleep quality, collagen synthesis, and gut health
How does Suppio calculate the best-value Glycine?
We rank Glycine by price per gram of active ingredient - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
Are these prices verified?
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
How often are Glycine prices updated?
Prices across our retailer network are refreshed at least daily.