Molecular identity
Free-form amino acid
- Formula
- C₂H₅NO₂
- g/mol
- 75.07
- CAS
- 56-40-6
Moderate evidence
Moderate evidence
Human trials exist and point the same way, but they are small, short, or mixed. Worth taking; not worth overselling.
Glycine
Free-form amino acid, 3 g유리형 글리신
Supports comfortable body temperature drop at bedtime.
3 g
per capsule — the whole formula
S$0.30
per day, no bundle math
Moderate evidence
graded honestly, weak included
2026-08-10
lot KD-2609C tested
What it is
Glycine is the simplest amino acid. At 3 g before bed it has been studied for subjective sleep quality in small trials.
How to take
One dose in water, about an hour before bed.
Supplier
Ajinomoto
Made at
GMP facility, Cheongju, Korea
Inside this capsule
This capsule
Glycine
Free-form amino acid · 3 g
One ingredient. The dose on the label is the dose in your hand, and the lot number traces it back to one supplier: Ajinomoto.
A typical blend capsule
ingredient?dose?ingredient?dose?ingredient?dose?ingredient?dose?ingredient?dose?ingredient?…
“Proprietary blend, 1,200 mg” — many names, one number, no way to know how much of anything you took, or what competes with what inside.
On the evidence
Evidence is moderate and from small trials; we grade it honestly rather than overstate.
Where it sits on our scale
Traditional use
Long use, thin trials — we say so
● Moderate evidence
Human trials, small or mixed
Strong evidence
Repeated randomised human trials
Every ingredient in the catalogue carries one of these three grades — including the ones we grade down. A scale you never see the bottom of is not a scale.
When you’d notice
Measured the same day it is taken
Same day → settles by 2 weeks
day 11w2w4w8w12w26w
Judged the morning after the first dose — it is taken for how the night went, not for how the month went.
Source: Sleep-quality trials dosing 3 g before bed and scoring the next morning
This lot’s certificate이 로트의 성적서
- Lot
- KD-2609C
- Tested
- 2026-08-10
- Lead
- <0.005 ppm
- Cadmium
- <0.001 ppm
- Allergens, 9 panel
- Not detected
Works in 1 set
Usually noticeable
1–2 weeks
From the consultation card that recommends it — not a promise, a typical window.
Reviews
4.03 reviews
- ★★★★★The certificate thing is real
Typed the lot number from my box into the site and the lab report actually opened. First supplement brand where I could do that. Capsules are small enough to swallow easily.
Wei Lin T. · SG · 2026-08-27
- ★★★★★Clean label, fair price
Compared with what I was paying at a local chemist for a branded version, this works out cheaper per day and the form is better. Import took a while but was handled for me.
Rahul M. · IN · 2026-08-19
- ★★★★★Product fine, wish for more sizes
No complaints on quality — certificate checked out, delivery on time. Three stars because I wanted a smaller trial size before committing to 30 days.
Jia Hui L. · SG · 2026-08-07
We show every rating including low ones, and never gate reviews on score.
This product is a health supplement, not a medicine. It is not intended to diagnose, treat, cure or prevent any disease. Statements describe nutritional or traditional function only.