We earn commission on purchases made through our links. It never affects ranking: tables are ordered purely by price per dose, and no retailer or brand can pay for position.We earn commission when you buy through our links. It never affects the ranking. Full disclosure.

perdose
Updated

Home › Amino acids & derivatives › Glycine

vitalityPROAmino acids & derivativesVegan

GlyNAC, 90 capsules

£25.00 for 90 capsules at Healf. It carries more than one active ingredient, so it is not ranked against single-ingredient products. Each price below counts one ingredient only.

What it really costs, per 3 g£2.38One 3 g dose is our comparison unit for glycine. It is not a recommendation.
A day£2.38
A week£16.67
A month£71.43
A year£869.05

At one 3 g dose a day, this pack lasts 11 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Glycine

  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 350 mg = 31.5 g
  • £25.00 ÷ 31.5 g × 3 g = £2.38 per 3 g
  • A week £2.38 × 7 = £16.67 · a month × 30 = £71.43 · a year × 365 = £869.05
  • Amount per serving: stated on the label.

N-Acetyl Cysteine

  • Servings: 90 ÷ 1 per serving = 90
  • In the pack: 90 × 350 mg = 31.5 g
  • £25.00 ÷ 31.5 g × 600 mg = 47.6p per 600 mg
  • A week 47.6p × 7 = £3.33 · a month × 30 = £14.29 · a year × 365 = £173.81
  • Amount per serving: stated on the label.

The standard dose is a comparison unit, not a recommendation. Always confirm the price on the retailer's site. How we compare everything.

How it compares: glycine

All 12, ranked →
GlycineCheapest per 3 gBulk · 2 g a serving · 81p a month · a pack lasts 11 months3p£8.99View at Bulk (opens in a new tab)
GlycineBulk · 2 g a serving · 90p a month · a pack lasts 5 months3p£4.99View at Bulk (opens in a new tab)
Glycine CapsulesMyprotein · 3 g a serving · £5.49 a month · a pack lasts 30 days18p£5.49View at Myprotein (opens in a new tab)
This productHealf · 350 mg a serving · £71.43 a month · a pack lasts 11 days£2.38shown above

Ranked purely by price per 3 g. 34 combination products also contain glycine.

How it compares: N-Acetyl Cysteine NAC

All 28, ranked →
N Acetyl L Cysteine (NAC)Cheapest per 600 mgBulk · 700 mg a serving · £1.17 a month · a pack lasts 4.6 years4p£64.99View at Bulk (opens in a new tab)
N Acetyl L Cysteine (NAC)Bulk · 700 mg a serving · £1.26 a month · a pack lasts 2.3 years4p£34.99View at Bulk (opens in a new tab)
N Acetyl L Cysteine (NAC)Bulk · 700 mg a serving · £1.80 a month · a pack lasts 5 months6p£9.99View at Bulk (opens in a new tab)
This productHealf · 350 mg a serving · £14.29 a month · a pack lasts 53 days48pshown above

Ranked purely by price per 600 mg. 44 combination products also contain N-Acetyl Cysteine.

On the label

Glycine · Glycine
350 mg per serving (stated on the label)
N-Acetyl Cysteine · NAC
350 mg per serving (stated on the label)
Pack
90 capsules · 90 servings · 1 capsule(s) a serving
Cost per serving
28p (90 servings in the pack)
More label details
Claimed on the listing
vegan
Sold by
Healf
What the listing says
“90 caps” · “Amount Per Capsule” · “Glycine ; 350mg”
Ingredients

Glycine, N-Acetyl Cysteine (NAC), Microcrystalline Cellulose, Vegetable Cellulose Capsule Shell (HPMC).

From the Healf listing. Check the pack itself if you have an allergy: labels mark allergens in bold.

Is something wrong? Tell us

Add to your basket

View basket

Your basket prices everything you take together: whole packs, delivery included, from as few websites as you like.

One 3 g dose is our comparison unit, not a recommendation.

Price history

No price change since 1 October 2026. Checked on 20 days, most recently 20 October 2026.

Price at every check
£25.00Healf
First recorded
£25.001 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. First checked at Healf: £25.00

Questions about this product

How much does vitalityPRO GlyNAC cost per 3 g?

£2.38 per 3 g, from £25.00 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

11 days at one 3 g dose. The pack holds 31.5 g in total.

How much does vitalityPRO GlyNAC cost per 600 mg?

48p per 600 mg, from £25.00 for 90 capsules at Healf, checked on 20 October 2026.

How long does one pack last?

53 days at one 600 mg dose. The pack holds 31.5 g in total.

About vitalityPRO

All 9 vitalityPRO products, priced per dose

More from vitalityPRO

Keep comparing

All glycineEvery form, cheapest per 3 g firstGlycine guideWhat it is, why people take it, how the forms differvitalityPROAll 9 products from this brand, per doseAmino acids & derivativesEverything else we price in this categoryGlycine price historyEvery glycine product's price per dose and price historyBuild a basketThe cheapest way to buy several at onceHow we compareWhere every number on this page comes from