Written by Jessie, Product Manager · Updated 6 November 2026
Should I choose Collagen Glow Berries or Collagen Glow Berries Zero?
Both give your skin the same 6,000 mg of marine collagen dipeptide, 250 mg of vitamin C and 100 mg of bilberry extract per sachet. If you're watching sugar, choose Collagen Glow Berries Zero: 0 g of sugars per sachet, sweetened with monk fruit extract and sucralose. Collagen Glow Berries has 2 g of sugars and tastes slightly sweeter.
This article is for you if: you like the sound of Collagen Glow Berries but you're watching how much sugar you have, and you want to know what changes in Collagen Glow Berries Zero, what stays the same, and which one suits you.
If you're cutting back on sugar, it makes sense to check the label of anything you drink every day, your collagen included. Collagen Glow Berries and Collagen Glow Berries Zero share the same skin formula, so the choice comes down to sugar, sweetness and a few smaller details. Here they are side by side, with the figures from each nutrition panel, so you can pick the one that fits your day.
→ See Collagen Glow Berries Zero, our marine collagen drink with 0 g of sugars per sachet
In this article
What do both drinks do for your skin?
Both drinks give your skin the same support, because every sachet of either one holds 6,000 mg of hydrolysed marine collagen. Hydrolysed collagen is collagen cut into short chains of amino acids, called peptides, and it's the form studied in skin trials.
- Elasticity, hydration and collagen density. A review of 11 randomised, placebo-controlled trials with 805 people found that oral collagen increases skin elasticity, hydration and dermal collagen density. Most of the trials used 2.5 to 10 g of hydrolysed collagen a day, for 8 to 24 weeks.[1]
- Changes from 4 weeks. In placebo-controlled trials, collagen density in the dermis, the deeper layer of skin, rose after 4 weeks of daily collagen peptides, and skin hydration improved after 8 weeks.[2]
- Dipeptides. A dipeptide is a peptide just two amino acids long. In a trial comparing two collagen hydrolysates, the one richer in the dipeptides Pro-Hyp and Hyp-Gly gave greater improvements in facial skin moisture, elasticity, wrinkles and roughness.[3] Both drinks use Wellnex marine collagen dipeptide.
At 6,000 mg a day, both sit within the range used in skin trials. For the week-by-week timeline, read our guide to how long collagen takes to work, and for the research behind collagen drinks, see do collagen drinks actually work?
What's the same in both?
The key ingredients, and the amount of each, are the same in Collagen Glow Berries and Collagen Glow Berries Zero. Every 30 g sachet of either one has:
- 6,000 mg of Wellnex marine collagen dipeptide: hydrolysed Types I and III collagen from tilapia, made by enzymatic hydrolysis, with glycine, proline and hydroxyproline in a 3:1:1 ratio.
- 250 mg of vitamin C: your skin uses vitamin C to make collagen.[4]
- 100 mg of bilberry extract (25% anthocyanins), plus torula yeast extract.
- 6 g of protein, in a mixed berry flavour.
Both are ready to drink, with no water needed, and come 30 sachets to a box. Both are free from dairy, gluten, soy and nuts, with no preservatives or artificial colouring. Both contain fish, so skip them if you have a fish allergy; marine collagen also suits people who avoid beef or pork. Both are made in Taiwan, in a US FDA-registered facility with HACCP and ISO 22000 certification.
How are they different?
The differences are sugar, sweeteners, calories, taste and certification. Here they are side by side.
| Per 30 g sachet | Collagen Glow Berries | Collagen Glow Berries Zero |
|---|---|---|
| Marine collagen | 6,000 mg Wellnex marine collagen dipeptide (Types I and III, from tilapia) | 6,000 mg Wellnex marine collagen dipeptide (Types I and III, from tilapia) |
| Vitamin C and bilberry extract | 250 mg vitamin C, 100 mg bilberry extract | 250 mg vitamin C, 100 mg bilberry extract |
| Sugars | 2 g | 0 g, including 0 g added sugars |
| Carbohydrate | 2 g | 0 g |
| Calories | 34 kcal | Slightly fewer than Collagen Glow Berries |
| Sweetened with | Fructose and apple, mixed berry and black cherry juice concentrates, plus 4.5 mg of sucralose | Monk fruit extract and sucralose, with small amounts of the same juice concentrates for flavour |
| Taste | Light, juice-like mixed berries | Very similar, slightly less sweet |
| Certifications | Halal-certified by the Taiwan Halal Integrity Development Association; made in a US FDA-registered, HACCP and ISO 22000 certified facility | Made in a US FDA-registered, HACCP and ISO 22000 certified facility |
| How to take | 1 sachet a day, before breakfast or at bedtime | 1 sachet a day, before breakfast or at bedtime |
Sources: the nutrition panels on our product pages, our product guide and product information sheets, checked 6 November 2026. Sucralose amount and halal certification as published on our help page.[9]
- Sugar. Collagen Glow Berries has 2 g of sugars and 2 g of carbohydrate per sachet. Collagen Glow Berries Zero has 0 g of sugars, including 0 g of added sugars, and 0 g of carbohydrate.
- Sweeteners. Collagen Glow Berries is sweetened with fructose and fruit juice concentrates, plus 4.5 mg of sucralose per sachet.[9] Collagen Glow Berries Zero replaces the fructose with monk fruit extract, alongside sucralose. Monk fruit extract is 100 to 250 times sweeter than sugar and sucralose about 600 times, so a very small amount does the job. The US Food and Drug Administration (FDA) sets the acceptable daily intake of sucralose at 5 mg per kg of body weight, or 250 mg a day for a 50 kg adult.[7] Singapore's Health Promotion Board notes that sweeteners have fewer calories than sugar, or none, and do not affect blood sugar levels.[6]
- Calories. Collagen Glow Berries has 34 kcal per sachet, and Collagen Glow Berries Zero has slightly fewer.
- Taste. Collagen Glow Berries has a light, juice-like berry taste with no fishy aftertaste. Collagen Glow Berries Zero tastes very similar, just slightly less sweet.
How does a sachet fit into your daily sugar?
Either sachet fits easily into a day's sugar. Singapore's Health Promotion Board advises keeping sugar to no more than 10% of your daily energy, which is about 10 teaspoons for most adults on 2,000 kcal a day, and says cutting down to 5 teaspoons (25 g) a day can bring extra health benefits.[6] The World Health Organisation gives the same advice for free sugars: sugars added to food and drink, such as fructose, plus the sugars in honey, syrups, fruit juices and fruit juice concentrates.[5]
- Collagen Glow Berries: 2 g of sugars per sachet, which is less than half a teaspoon and under a tenth of the 25 g goal. For comparison, a typical cup of kopi has over four teaspoons of sugar.[6]
- Collagen Glow Berries Zero: 0 g of sugars per sachet, so it adds nothing to your daily sugar count.
If you're cutting back on sugar for your skin's sake, our guide to whether sugar ages your skin explains glycation, where sugar molecules attach to collagen.
Which one should you choose?
Choose by your sugar goals and your taste, because your skin gets the same collagen either way.
Collagen Glow Berries Zero suits you if:
- you're keeping your sugar intake as low as you can, or counting every gram;
- you're managing your diet and want 0 g of sugars and 0 g of carbohydrate per sachet;
- you prefer a drink that's slightly less sweet.
Collagen Glow Berries suits you if:
- you'd like the original, slightly sweeter taste;
- 2 g of sugars per sachet fits comfortably within your daily sugar;
- you'd like a halal-certified collagen drink. Collagen Glow Berries is certified by the Taiwan Halal Integrity Development Association.[9]
Are both lab tested?
Yes. Both have independent lab reports published on our lab tests page, so you can open the results yourself.[8]
- Collagen Glow Berries: SGS, an independent testing company, found no detectable arsenic, lead, cadmium or mercury, none of the 15 hormones tested and none of the 9 phthalate plasticisers tested. Tests for microbes, including E. coli, were negative.
- Collagen Glow Berries Zero: an independent laboratory in Malaysia found no detectable arsenic, lead, mercury, cadmium or antimony, and no growth of any microbe tested, including E. coli and Salmonella.
How do you take each one?
You take both the same way: 1 sachet a day, before breakfast or at bedtime. Our product guide has how to take and store every product.
- Shake, tear and sip. Shake the sachet, tear it open and drink it straight from the pack, with no water or mixing needed. Some of our customers like to chill it in the fridge first.
- Pick your time. Before breakfast and at bedtime both fall between meals, and both are easy to tie to a habit you already have. Our guide to the best time to take collagen helps you choose.
- Keep it daily. Collagen works through daily use over weeks, and we recommend at least 3 months for the best results.
If you're pregnant, breastfeeding, taking medication or have a medical condition, check with your doctor first, as both labels advise.
Collagen Glow Berries Zero gives you 6,000 mg of Wellnex marine collagen dipeptide, 250 mg of vitamin C and 100 mg of bilberry extract in every ready-to-drink sachet, with 0 g of sugars. If you'd rather have Collagen Glow Berries, you can choose it on the same page.
Shop Collagen Glow Berries Zero
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Related reading: Do collagen drinks actually work? · How long does collagen take to work? · Does sugar really age your skin?
Frequently asked questions
Will I get the same results from Collagen Glow Berries Zero?
Yes. Collagen Glow Berries Zero has the same key ingredients in the same amounts as Collagen Glow Berries, including 6,000 mg of marine collagen dipeptide, so you can expect similar results with daily use. Take 1 sachet every day, and give it at least 3 months for the best results.
Can I switch between Collagen Glow Berries and Collagen Glow Berries Zero?
Yes. Both give you the same collagen, vitamin C and bilberry extract, so switching keeps your routine on track. Just keep to 1 sachet a day, at your usual time.
Is Collagen Glow Berries Zero suitable if I'm managing my blood sugar?
Collagen Glow Berries Zero has 0 g of sugars and 0 g of carbohydrate per sachet, which makes it the better fit if you're managing your sugar intake. It is sweetened with monk fruit extract and sucralose, and Singapore's Health Promotion Board notes that sweeteners do not affect blood sugar levels. If you have diabetes or another medical condition, check with your doctor before you start.
Is Collagen Glow Berries halal?
Yes. Collagen Glow Berries is halal-certified by the Taiwan Halal Integrity Development Association. It is certified even if the packaging you receive doesn't show the halal logo yet.
Key takeaways
- Collagen Glow Berries and Collagen Glow Berries Zero both have 6,000 mg of Wellnex marine collagen dipeptide, 250 mg of vitamin C and 100 mg of bilberry extract per sachet.
- Collagen Glow Berries has 2 g of sugars per sachet; Collagen Glow Berries Zero has 0 g, sweetened with monk fruit extract and sucralose.
- Singapore's Health Promotion Board advises no more than about 10 teaspoons of sugar a day for most adults, and 2 g is less than half a teaspoon.
- Collagen Glow Berries Zero tastes very similar to Collagen Glow Berries, just slightly less sweet.
- Collagen Glow Berries is halal-certified by the Taiwan Halal Integrity Development Association.
- Take either one as 1 sachet a day, before breakfast or at bedtime.
About the author: Jessie is the Product Manager at The Purest Co. A Biomedical Science graduate from the International Medical University Malaysia, she has over five years in the nutraceutical industry, sourcing high-quality herbs to create supplements that are enjoyable and effective. She keeps up with new research through global conferences.
References
[1] Choi FD, Sung CT, Juhasz ML, Mesinkovsk NA. Oral collagen supplementation: a systematic review of dermatological applications. J Drugs Dermatol. 2019.
[2] Asserin J, Lati E, Shioya T, Prawitt J. The effect of oral collagen peptide supplementation on skin moisture and the dermal collagen network: evidence from an ex vivo model and randomized, placebo-controlled clinical trials. J Cosmet Dermatol. 2015.
[3] Inoue N, Sugihara F, Wang X. Ingestion of bioactive collagen hydrolysates enhance facial skin moisture and elasticity and reduce facial ageing signs in a randomised double-blind placebo-controlled clinical study. J Sci Food Agric. 2016.
[4] Pullar JM, Carr AC, Vissers MCM. The roles of vitamin C in skin health. Nutrients. 2017.
[5] World Health Organization. WHO calls on countries to reduce sugars intake among adults and children. 4 March 2015.
[6] Health Promotion Board, HealthHub. 4 ways to reduce your daily sugar intake. Last reviewed 11 July 2023.
[7] US Food and Drug Administration. Aspartame and other sweeteners in food. Content current as of 27 February 2025.
[8] The Purest Co. Lab tests: published test reports for Collagen Glow Berries and Collagen Glow Berries Zero.
[9] The Purest Co. Help Center: halal-certified products and sucralose content of Collagen Glow Berries.
These statements have not been evaluated by any regulatory authority. This product is not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary. Consult a healthcare provider before use if you are pregnant, breastfeeding, or on prescribed medication.