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Known Nutrition Marine Liquid Collagen vs Known Nutrition Clear Skin

Side-by-side comparison of scores, ingredients, prices and real customer feedback for Known Nutrition Marine Liquid Collagen and Known Nutrition Clear Skin.

Last verified: 13 Mar 2026 · Based on 27 reviews

Our Verdict: Known Nutrition Marine Liquid Collagen or Known Nutrition Clear Skin?

The Advanced Hydrolysed Marine Liquid Collagen (82/100) beats the Clear Skin Gummies (69/100) with 5000mg collagen that improves skin plumpness and fine lines within 4 weeks. At £64.99 for a couples supply versus £12.99, it's better value if you're targeting skin ageing. Go for the Clear Skin Gummies instead if you have mild breakouts and want an affordable, convenient daily option.

— AIScored Editorial Team

82
Score Summary

Known Nutrition Marine Liquid Collagen scores 82/100 vs Known Nutrition Clear Skin at 69/100. Known Nutrition Marine Liquid Collagen wins on effectiveness, ingredient quality, value for money.

Known Nutrition Marine Liquid Collagen vs Known Nutrition Clear Skin: What Does the Data Say?

Advanced Hydrolysed Marine Liquid Collagen Couples Supply delivers 5000mg hydrolysed marine collagen per serving through a liquid format with claimed liposomal delivery for better absorption. Clear Skin Vitamin Gummies with Zinc, Selenium & Vitamin B2 relies on gummies containing zinc citrate, selenium yeast, vitamin B2, 60mg evening primrose oil, 50mg inulin and 250M CFU bacillus coagulans. The collagen product scores 82/100 overall with 83.0/100 effectiveness and 83.0/100 ingredient quality while the gummies manage just 69/100 overall, 67.0/100 effectiveness and 62.0/100 ingredient quality.

People seeking skin plumpness, fine line reduction and hair improvements should pick the Advanced Hydrolysed Marine Liquid Collagen Couples Supply at £64.99 especially if they prefer liquids over capsules or share supplies with others. Those dealing with mild acne or oily skin on tighter budgets will find the Clear Skin Vitamin Gummies with Zinc, Selenium & Vitamin B2 at £12.99 more suitable for daily convenience and general breakout support. The liquid collagen shows stronger results within four weeks for hydration and dullness according to reviewers yet the gummies earn praise for less oily skin with regular use.

Practical issues matter too. The collagen sachets often leak and prove hard to empty completely which has upset some regular buyers and pushed the price up without matching pack size gains. Gummies taste easy and avoid swallowing problems though their lower ingredient amounts sit well below studied levels. The collagen product wins on value at 69.0/100 against 58.0/100 for the gummies.

How Do the Scores Compare?

Advanced Hydrolysed Marine ...
Clear Skin Vitamin Gummies ...
Advanced Hydrolysed Marine Liquid Collagen Couples Supply (2x 28-Day Supply)
Advanced Hydrolysed Marine ...
Known Nutrition
Clear Skin Vitamin Gummies with Zinc, Selenium & Vitamin B2 - Complexion & Blemish Support
Clear Skin Vitamin Gummies ...
Known Nutrition
Overall Score 82 69
Effectiveness 83.0/100
Best
67.0/100
Ingredient Quality 83.0/100
Best
62.0/100
Value for Money 69.0/100
Best
58.0/100
Side Effects 91.0/100
Best
72.0/100
Certifications 100/100
Best
100/100
Best
Best Price £64.99 Known Nutrition → £12.99 Known Nutrition →
Cheapest
Form liquid gummies
Dose None None
Third-Party Tested ✓ Yes ✓ Yes
Reviews Analysed 16 11

Advanced Hydrolysed Marine Liqui...

Pros

  • 5000mg hydrolysed marine collagen at a clinically relevant dose, with liposomal delivery claimed to enhance absorption
  • Strong positive feedback on skin plumpness, fine line reduction, and hydration — multiple reviewers report results within 4 weeks
  • Hair thinning and dullness improvements noted, particularly by perimenopausal users
  • Synergistic formula: Vitamin C (cofactor for collagen synthesis), pine bark extract (antioxidant), bilberry, Vitamin E, and A

Cons

  • Redesigned sachet format widely criticised: leaking, difficult to fully empty, and inconvenient — drove two 1-star reviews from previously loyal customers
  • Price has increased while some reviewers feel pack size has decreased, reducing perceived value
  • One reviewer found the taste artificial; subjective but relevant given the liquid format
  • Short-term users (under 1 week) report no results yet, which is expected but may disappoint those seeking rapid outcomes

Best For

Women over 40 or in perimenopause seeking skin and hair support Those who struggle to swallow capsules and prefer a liquid format Couples or household members sharing a monthly supply Consumers prioritising certified, UK-manufactured supplements Anyone wanting a collagen product with supporting antioxidant co-factors built in
View full review →

Clear Skin Vitamin Gummies with ...

Pros

  • Most reviewers report clearer, less oily skin with regular use
  • Strong certifications: ISO independently tested, GMP, BRC — rare combination for gummy supplements
  • Zinc Citrate and Selenium Yeast are well-absorbed, evidence-backed forms for skin health
  • Contains probiotic (Bacillus coagulans) and prebiotic (inulin) for gut-skin axis support

Cons

  • Evening Primrose Oil at 60mg is far below the 500–3000mg range used in clinical studies — likely token dosing
  • Inulin at 50mg is negligible as a prebiotic (effective doses start at 5g); Bacillus coagulans at 250M CFU is low-end
  • At least one user reported a strong sulfurous/rotten-egg taste, possibly from selenium yeast
  • Not suitable for vegans (contains milk via lactic acid); glucose syrup and sucrose are the first two ingredients

Best For

People with mild acne or oily skin looking for a convenient daily supplement Vegetarians seeking a certified, UK-produced skin supplement Teens and young adults with general breakout concerns (not hormonal/cystic acne) Those who prefer gummies over capsules and want a palatable format
View full review →

Score Breakdown: Known Nutrition Marine Liquid Collagen vs Known Nutrition Clear Skin

Known Nutrition Marine Liquid Collagen Winner 82/100

Known Nutrition's Advanced Marine Liquid Collagen delivers 5000mg of hydrolysed marine collagen per 15ml sachet, enhanced with liposomal technology, Vitamin C, pine bark extract, and bilberry.

Effectiveness
Advanced Hydroly..
83.0/100
Clear Skin Vitam..
67.0/100
Ingredient Quality
Advanced Hydroly..
83.0/100
Clear Skin Vitam..
62.0/100
Value for Money
Advanced Hydroly..
69.0/100
Clear Skin Vitam..
58.0/100
Side Effects
Advanced Hydroly..
91.0/100
Clear Skin Vitam..
72.0/100
Certifications
Advanced Hydroly..
100/100
Clear Skin Vitam..
100/100

What are the key differences?

Known Nutrition Marine Liquid Collagen is best for: Women over 40 or in perimenopause seeking skin and hair support, Those who struggle to swallow capsules and prefer a liquid format
Known Nutrition Clear Skin is best for: People with mild acne or oily skin looking for a convenient daily supplement, Vegetarians seeking a certified, UK-produced skin supplement

Frequently Asked Questions

Which is better, Known Nutrition Marine Liquid Collagen or Known Nutrition Clear Skin?
The Advanced Hydrolysed Marine Liquid Collagen (82/100) beats the Clear Skin Gummies (69/100) with 5000mg collagen that improves skin plumpness and fine lines within 4 weeks. At £64.99 for a couples supply versus £12.99, it's better value if you're targeting skin ageing. Go for the Clear Skin Gummies instead if you have mild breakouts and want an affordable, convenient daily option. Known Nutrition Marine Liquid Collagen scores 82/100 overall while Known Nutrition Clear Skin scores 69/100. Known Nutrition Marine Liquid Collagen comes out ahead, scoring higher on effectiveness (83.0 vs 67.0). Known Nutrition Marine Liquid Collagen is best suited for Women over 40 or in perimenopause seeking skin and hair support and Those who struggle to swallow capsules and prefer a liquid format. Known Nutrition Clear Skin is better for People with mild acne or oily skin looking for a convenient daily supplement and Vegetarians seeking a certified, UK-produced skin supplement.
Is Known Nutrition Marine Liquid Collagen worth the price compared to Known Nutrition Clear Skin?
Known Nutrition Marine Liquid Collagen costs £64.99 while Known Nutrition Clear Skin is £12.99. For value, Known Nutrition Marine Liquid Collagen scores 69.0/100 vs Known Nutrition Clear Skin's 58.0/100. Known Nutrition Marine Liquid Collagen delivers better value relative to its quality. Note that Known Nutrition Marine Liquid Collagen comes as liquid while Known Nutrition Clear Skin is gummies, which may affect your preference.
Which has fewer side effects?
Known Nutrition Marine Liquid Collagen scores 91.0/100 for side effects (higher means fewer reported issues) while Known Nutrition Clear Skin scores 72.0/100. Reviewers report fewer side effects with Known Nutrition Marine Liquid Collagen. For certification and testing, Known Nutrition Marine Liquid Collagen scores 100/100 vs Known Nutrition Clear Skin's 100/100. Always consult a healthcare professional before starting any supplement.

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Disclaimer: AIScored provides data-driven comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.

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