icon-account icon-glass

Join the community!

We'll keep you up to date with interesting news, product information and offers so you never miss out.

No boring newsletters and we'll never share your address. You can unsubscribe at any time.

Popular Products

The Lean Protein
Whey protein powder for weight-loss.
The Energy Booster
Pre/intra-workout powder with BCAAs.
The Glow Booster
Collagen supplement for skin.

Innermost Ingredients: L Glycine

26th July 2022

26th July 2022

By Beth Shelper

L Glycine, or Glycine, is a non-essential amino acid that is naturally produced by the body. Not only is L Glycine an important amino acid, but it’s a neurotransmitter, too, which means that this ingredient plays a great part in increasing serotonin levels and allowing users to achieve a sense of calm, achieve a better night’s sleep and improve overall mood.

If you’re reading this as someone that is struggling with their sleep, we highly recommend The Relax Capsules – as these have been specially formulated with L Glycine to improve the production of the all-important sleep hormone melatonin.

Aside from that, let’s look at the ingredient, it’s health benefits and talk about some of the leading L Glycine uses…

What is L Glycine?

Aside from the above definition, Glycine is one of the many amino acids in the body: one of 20, in fact. These amino acids are pretty special (and hugely important) as each play a role in our normal body functioning, health and performance.

Can you get L Glycine from food?

As we said, L Glycine is an amino acid, which are molecules in the body that combine to create proteins. These proteins are hugely important, and whilst these are produced naturally, in order to get high levels of protein, people often supplement their diet with foods or supplementations such as The Relax Capsules in order to attain higher levels of these.

To answer this question: yes, L Glycine can be ingested through food sources such as meat and fish, but in order to achieve high levels of this important amino acid, its generally recommended to supplement your diet with L Glycine supplementations.

Why do people take L Glycine?

People take L Glycine for a number of reasons, ranging from mental health assistance to sleep improvement. Here are some of the main reasons that people choose to use L Glycine supplementation:

  • Improve sleep
  • Boost the immune system
  • Reduce unpleasant gastrointestinal symptoms
  • Helps in muscle repair
  • Aids in the reduction of schizophrenia symptoms
  • Increases the growth hormones
  • Boost relaxation levels

Here at Innermost, we wouldn’t use any ingredients that haven’t been fully backed by science. We do the research so that you don’t have to, and we’re here to say that L Glycine really does the job.

Does L Glycine really improve your sleep?

Yes, absolutely. In recent research published in Sleep and Biological Rhythms, it was found that volunteers who had previously complained about poor sleep quality saw a notable difference in the quality of their sleep. Not just notable, in fact, but they experienced a significant improvement in their feelings of fatigue, a notable change in their liveliness, and a distinct feeling of ‘clear-headedness’.

Not only this (yes, there’s more – we told you that we use high quality ingredients), a further study published in the same journal found that L Glycine usage greatly decreased participants’ experience of daytime fatigue, boosted a great improvement in overall sleep quality, and even improved participants’ performance in day-to-day life when it comes to areas such as memory and recognition.

When should you take L Glycine supplementations?

As one of the main benefits of L Glycine is the assistance in the production of the sleep hormone melatonin, if you’re taking L Glycine supplementations to improve your sleep, help achieve a sense of calmness, or even just help in muscle repair, we recommend that you take these supplementations at night – just before bed.


If you’re looking to improve your immune system, improve your sleep schedule (and quality), and  boost your relaxation, why not give The Relax Capsules a try? This L Glycine supplementation contains only the best science-backed ingredients (of course) and can be a real helping hand in taking back control of your relaxation.


  • Inagawa, K., Hiraoka, T., Kohda, T., Yamadera, W., & Takahashi, M. (2006). Subjective effects of glycine ingestion before bedtime on sleep quality. Sleep and Biological Rhythms, 4(1), 75-77. Click here.

Product Spotlight

Need Expert Advice?

Other Insights