Shaklee Collagen-9 Review 2026: Legit or Overhyped?
Read before you buy. — Overhyped
-
"Collagen supplements improve skin elasticity and hydration"
Small trials show modest gains after 8-12 weeks at 2.5-10g daily doses, similar to what's in this product.
PubMed: Proksch et al 2014 -
"$1.40-$1.70 per serving collagen powder pricing"
Ingredient cost is about $0.35-0.40 per serving, so you're paying roughly 4-5x markup, similar to other branded collagen products.
-
"Collagen-9 is the 'most complete' collagen because it has all 9 essential amino acids"
Your body pulls amino acids from your whole diet, not one product, to make collagen. This claim overstates biology.
Internal: protein synthesis biology -
"Biotin supports healthy hair, skin, and nails"
Biotin only helps people who are actually deficient, and true deficiency is rare in people eating normal diets.
NIH Office of Dietary Supplements, Biotin Fact Sheet
Consumer advice
If you want to try collagen for skin or joints, know that evidence is modest at best — expect subtle, slow changes, not dramatic transformation. The "9 amino acids" pitch is a marketing angle, not a scientifically necessary feature; plain collagen peptides from brands like Vital Proteins or Great Lakes cost less for a similar amino acid profile, especially if you already eat enough protein (which supplies tryptophan easily). Skip products from MLM-style brands if price matters, since member pricing still carries built-in markup to support the distributor network.
Claims vs Evidence
MODERATE5 claims assessed. These grades assess the marketing claims, not the whole product. See each explanation for the evidence and its limits.
"helps support your hair, skin, nails, and joints"
Partial
Limited trials show modest skin benefits; hair/nail evidence weaker
Based on: Collagen (bovine), Biotin, Vitamin C
Source: Examine.com collagen review
"may help to improve skin elasticity"
Partial
Some small trials show elasticity gains after 8-12 weeks
Based on: Collagen (bovine)
Source: PubMed: Proksch et al 2014
"Collagen-9 is 'the most complete collagen product' because it has all 9 essential amino acids via pea protein"
Unsupported
Body uses dietary amino acid pool, not single-product completeness, to build collagen
Based on: Collagen (bovine), Pea protein
Source: Internal: protein synthesis biology
"100% DV biotin supports healthy skin, hair, nails, joints"
Stretch
Only helps if you're deficient; most people aren't
Based on: Biotin
Source: NIH Office of Dietary Supplements biotin fact sheet
"hydrolyzed collagen improves absorption over other collagen"
Partial
Hydrolyzed form does absorb faster, this part is accurate
Based on: Collagen (bovine)
Source: Examine.com collagen hydrolysate review
3 partial · 1 stretch · 1 unsupported
Ingredients
Based on peer-reviewed research from PubMed and Examine.com
Why the chain breaks for this product
Most ingredients below have real research behind them. The problem isn't the ingredients — it's the doses. 2 of 4 are not disclosed on the label, so the product can claim the benefits without delivering the chain that gets you there.
Plant-based protein that supports muscle health, blood sugar control, and satiety comparable to whey.
Research-backed dose: 20-30g daily based on study doses
In this product: Dose not disclosed
B vitamin essential for metabolism. Little clinical proof it grows hair or nails in healthy people.
Research-backed dose: 30-100mcg/day (RDA); higher doses used in hair-loss studies but mostly in deficient populations
In this product: 100% DV
Essential antioxidant vitamin. Evidence supports cardiovascular, immune, and kidney-protective benefits.
Research-backed dose: 200-2000 mg daily depending on health goal; IV doses up to 6g/day used in clinical settings
In this product: 100% DV
Collagen (bovine)
Plant extract with solid evidence for lowering blood pressure and improving cholesterol in at-risk adults.
Research-backed dose: 1000-2000 mg daily based on study doses
In this product: Dose not disclosed
Safety & side effects
What NIH says about the ingredients in this product. This describes the ingredients, not tests of this product, and it is not medical advice. Ask a doctor or pharmacist first if you take medication, are pregnant or nursing, or have a health condition.
Biotin
The FNB set no upper limit for biotin because it found no evidence of toxicity in humans at high intakes. The source says high intakes, possibly even ones above the AI, may pose another type of health risk: falsely high or low lab test results.
Serious risks
- High biotin intakes, possibly even intakes above the AI, may pose a health risk tied to lab testing.
- Biotin beyond recommended intakes can cause clinically significant falsely high or falsely low lab results, depending on the test.
- In a small study of six healthy adults taking 10 mg/day for 1 week, biotin falsely lowered N-terminal pro-brain natriuretic peptide, which could result in a failure to identify congestive heart failure. Thyroid stimulating hormone was also falsely lowered.
- Case reports describe findings falsely indicating Graves' disease and severe hyperthyroidism in patients taking 10–300 mg biotin per day.
- A single 10 mg dose of biotin has interfered with thyroid function tests given within 24 hours.
- Per FDA, a patient with a high intake of supplemental biotin died after a troponin test gave a falsely low result because of biotin interference.
Medication interactions
- Biotin can interact with certain medications, and some medications can have an adverse effect on biotin levels.
Source: NIH Office of Dietary Supplements, Biotin: Fact Sheet for Health Professionals
Vitamin C
The source describes vitamin C as having low toxicity, with high doses mainly causing digestive upset. It names a few specific concerns, including kidney stones, iron overload in people with hereditary hemochromatosis, and a possible pro-oxidant effect.
Possible side effects
- The most common complaints are diarrhea, nausea, abdominal cramps, and other digestive upset.
Serious risks
- High intakes may raise urinary oxalate and uric acid, which could contribute to kidney stones, especially in people with renal disorders.
- The best evidence that vitamin C contributes to kidney stones is in patients who already have hyperoxaluria.
- In people with hereditary hemochromatosis, long-term high doses could worsen iron overload and cause tissue damage.
- A few in vitro studies suggested that supplemental oral vitamin C, acting as a pro-oxidant, could cause chromosomal or DNA damage and possibly contribute to cancer.
- In postmenopausal women with diabetes in the Iowa Women's Health Study, supplemental vitamin C of at least 300 mg/day was significantly associated with a higher risk of dying from CVD.
Avoid or ask a doctor first if
- People with hereditary hemochromatosis face a concern about iron overload with chronic high doses.
- The upper limits do not apply to people receiving vitamin C as medical treatment, who should be under a physician's care.
- Infants should get vitamin C only from formula and food.
Medication interactions
- Vitamin C supplements may interact with radiation therapy and with medications, including chemotherapy drugs and statins.
- People taking these medications regularly should talk with their health care providers about vitamin C intake.
Upper limit: 2000 mg a day for adults 19+. This label lists 100% DV.
Source: NIH Office of Dietary Supplements, Vitamin C: Fact Sheet for Health Professionals
Price & Value
ModerateShaklee Collagen-9
$33.95-$56.60 (member price)
Vital Proteins Collagen Peptides or Great Lakes Gelatin Collagen Hydrolysate
$20-$25 for similar 20-28 servings (10g collagen per serving)
What you're actually paying for
This is a multi-ingredient blend at approximately $1.40-$1.70 a serving. Comparable options: Vital Proteins Collagen Peptides, Great Lakes Gelatin, or any plain bovine collagen powder plus a $10 multivitamin.
Worth paying for
- may help to improve skin elasticity
What's marketing
- 100% DV biotin supports healthy skin, hair, nails, joints
- Collagen-9 is the 'most complete' collagen because it has all 9 essential amino acids
- Biotin supports healthy hair, skin, and nails
Research sources: PubMed · Examine.com
Analyzed product: https://us.shaklee.com/en_us/s/nutrition/targeted-solutions/collagen/c/collagen
Analysis generated: 2026-11-10 · Engine v1.0.0
Frequently Asked Questions
Is Shaklee Collagen-9 worth the money?
Shaklee Collagen-9 at $33.95-$56.60 (member price) is questionable value. While some ingredients have merit, the formulation is overhyped. Collagen-9 is a legitimate-looking collagen peptide powder with biotin and vitamin C, which is a fairly standard and modestly evidence-backed combination for skin and joint support. However, the marketing overstates the significance of adding tryptophan via pea protein as if it unlocks unique "complete protein" benefits, a claim not really supported by collag
Is Shaklee Collagen-9 a scam?
Shaklee Collagen-9 is not necessarily a scam, but it is overhyped. The marketing claims exceed what the ingredients can deliver.
What are the ingredients in Shaklee Collagen-9?
Shaklee Collagen-9 contains 4 ingredients including Pea protein, Biotin, Vitamin C, Collagen (bovine).
Does Shaklee Collagen-9 actually work?
Shaklee Collagen-9 may provide some benefits, but results vary. 0 of 5 claims are fully supported. 3 are partially supported.
Are there cheaper alternatives to Shaklee Collagen-9?
Yes, Vital Proteins Collagen Peptides or Great Lakes Gelatin Collagen Hydrolysate at $20-$25 for similar 20-28 servings (10g collagen per serving) offers similar benefits at a better price point. Many key ingredients in Shaklee Collagen-9 are available separately for less.
Does Shaklee Collagen-9 have side effects?
NIH summaries of the ingredients in Shaklee Collagen-9 note these possible effects. Biotin: High biotin intakes, possibly even intakes above the AI, may pose a health risk tied to lab testing. Vitamin C: The most common complaints are diarrhea, nausea, abdominal cramps, and other digestive upset. This describes the ingredients, not tests of this product; ask a doctor or pharmacist.