Liquid Collagen Complex Healthy Hair Skin & Nails Delicious Grape Flavor

Liquid Collagen Complex Healthy Hair Skin & Nails Delicious Grape Flavor

RejuviCare4.5 (10,506 ratings)
Format:Liquid Quantity: 16 Liquid(s) · 32 servings
Goals

Product analysis

53 out of 100

Liquid Collagen Complex Healthy Hair Skin & Nails Delicious Grape Flavor combines liquid collagen with vitamins for hair and skin support. Its unidentified collagen preparation makes benefits associated with specific collagen preparations harder to apply to this supplement.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality32

Some vitamin sources are identified, but the collagen and biotin forms are unspecified. That makes it harder to compare the main beauty-focused ingredients with clearly defined alternatives.

Ingredient Transparency77

The ingredient amounts are disclosed, making serving comparisons possible. Several forms, including collagen and biotin, are missing, so the precise preparations are harder to compare.

Value For Money36

The collagen is expensive for the amount provided, which limits the value of a collagen-focused purchase. Biotin offers more reasonable value, while vitamin B5 adds little value for the cost.

Customer Satisfaction84

Customer ratings are favorable. The many ratings make the feedback broader than a small collection of individual opinions.

Product Focus55

The formula centers on hair and skin nutrition, with biotin most relevant when intake is low. The small, unidentified collagen serving gives little basis for expecting the benefits linked to specific collagen preparations.

Format
Liquid
Container
16 Liquid(s)
Per serving
$0.29
Customer rating
4.5 · 10,506 ratings
Report analysis

Goals

Skin Health
Impact
Moderate effect
B+ Ingredient FitF PathwaysD+ EvidenceA+ Formulation Logic
Vitamin C · 30 mgCollagen · 500 mg
Study evidence
Biotin Supportive 10 studies
Collagen Supportive 62 studies
Vitamin C Supportive 53 studies
Impact
Moderate effect
C+ Ingredient FitF PathwaysB+ EvidenceA- Formulation Logic
Biotin · 1000 mcgVitamin C · 30 mgCollagen · 500 mg
Study evidence
Biotin Supportive 4 studies
Collagen Supportive 3 studies

Ingredients

IngredientAmount per servingScore
Calories
10 Calorie(s)
Total Carbohydrates
2 Gram(s)
Protein
1 Gram(s)
Vitamin C (Ascorbic Acid)
30 mg
Vitamin B6 (Pyridoxine Hydrochloride)
5 mg
Biotin
1000 mcg 69
Pantothenic Acid (D-Panthenol)
20 mg 49
Collagen Hydrolysate
500 mg 37
Adults 18–50
Report overview
Biotin · 1000 mcg OverallScore69
B+ Active Ingredient Quality & BioavailabilityC Dose, Safety & Label TransparencyC Value
Each serving provides 1000 mcg of biotin. The package cost also covers other vitamins and minerals. The label says biotin but does not specify its isomer. No artificial colors or sweeteners are indicated.
How this ingredient is rated

Active Ingredient Quality & Bioavailability82

The label says biotin but does not specify its isomer. No artificial colors or sweeteners are indicated.
Biologically Active d-Biotin Isomer
The label says biotin but does not specify its isomer.
Excipient Purity
No artificial colors or sweeteners are indicated.

Dose, Safety & Label Transparency60

The label states 1000 mcg of biotin per serving.
Biotin Potency for Health Goals
A serving provides 1000 mcg of biotin.
Label Transparency & Exact Disclosure
The amount of biotin is clearly stated.

Value60

The package cost also covers other vitamins and minerals.
Price per 5,000 mcg Biotin
The package cost also covers other vitamins and minerals.
C Active Ingredient Quality & BioavailabilityD+ Dose, Safety & Label TransparencyF Value
Each serving provides 20 mg of vitamin B5, with a high cost for that amount. The named form is D-Pantothenol.
How this ingredient is rated

Active Ingredient Quality & Bioavailability60

The named form is D-Pantothenol.
Vitamin B5 Chemical Form
The named form is D-Pantothenol.

Dose, Safety & Label Transparency52

Each serving provides 20 mg of vitamin B5. The source is named.
Dosage Potency and Efficacy
Each serving provides 20 mg of vitamin B5.
Label Transparency & Source Clarity
The B5 amount and D-Pantothenol are named.

Value20

The cost is high for the amount of B5 supplied.
Price per 500mg Vitamin B5
The cost is high for the amount of B5 supplied.
Collagen · 500 mg OverallScore37
B- Active Ingredient Quality & BioavailabilityF Dose, Safety & Label TransparencyF Value
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. The Role of Sesbania grandiflora-Derived Biotin and Bambusa arundinacea-Derived Silica Extracts in Promoting Hair, Skin, and Nail Health: A Randomized, Double-Blind, Placebo-Controlled Clinical Study.
    Patel MN; Maheshvari J; Patel N · Cureus · 2025
    Randomized trial105 participantsHair Health Skin Health forBiotin
  2. Low serum biotinidase activity in children with valproic acid monotherapy.
    Schulpis KH; Karikas GA; Tjamouranis J; Regoutas S; Tsakiris S · Epilepsia · 2001
    Clinical trial125 participantsHair Health Skin Health forBiotin
  3. Vitamins A, B, C, and D: A Short Review for the Dermatologist.
    Coerdt KM; Goggins CA; Khachemoune A · Alternative therapies in health and medicine · 2021
    Narrative reviewHair Health forBiotin
  4. The Infatuation With Biotin Supplementation: Is There Truth Behind Its Rising Popularity? A Comparative Analysis of Clinical Efficacy versus Social Popularity.
    Soleymani T; Lo Sicco K; Shapiro J · Journal of drugs in dermatology : JDD · 2018
    Narrative reviewHair Health forBiotin
  5. Low-Molecular-Weight Collagen Peptide Supplementation Improves Cellulite Severity, Skin Elasticity, and Hair Shaft Diameter: A Clinical Study with Pharmacokinetic Evaluation.
    Hwang S; Won J; Kim S; Kang W; Park M · Journal of medicinal food · 2026
    Randomized trial114 participantsHair Health forCollagen
  6. Calcium and Vitamin D Supplementation with and Without Collagen on Bone Density and Skin Elasticity in Menopausal Women-A Randomized Controlled Study.
    Duangjai A; Srivilai J; Nangola S; Amornlerdpison D · Clinics and practice · 2025
    Randomized trialHair Health forCollagen
  7. Dietary Collagen Supplementation as a Strategy for Skin Health: A Narrative Review of Clinical Effects on Skin, Hair, Nails, and Wound Healing.
    Biełach-Bazyluk A; Jurga M; Flisiak I; Zbroch E · Nutrients · 2026
    Narrative reviewHair Health forCollagen
  8. Management of hair loss associated with endocrine therapy in patients with breast cancer: an overview.
    Karatas F; Sahin S; Sever AR; Altundag K · SpringerPlus · 2016
    Narrative reviewHair Health forVitamin C
  9. Elucidating causal relationships of diet-derived circulating antioxidants and the risk of non-scarring alopecia: A Mendelian randomization study.
    Ba Y; Shen L; Peng X; Zhang Y; Wang J · Medicine · 2024
    Methods validation study201,019 participantsHair Health forVitamin C
  10. Alterations of plasma antioxidants and mitochondrial DNA mutation in hair follicles of smokers.
    Liu CS; Chen HW; Lii CK; Tsai CS; Kuo CL; Wei YH · Environmental and molecular mutagenesis · 2002
    Observational studyHair Health forVitamin C
  11. Removal of synthetic hair dye using formamidine sulfinic acid and other sulfinate precursors.
    Hawkes JA; Lewis DM; Mama J; Murray J · International journal of cosmetic science · 2026
    Methods validation studyHair Health forVitamin C
  12. A Zinc Sulphate-Resistant Acrodermatitis Enteropathica Patient with a Novel Mutation in SLC39A4 Gene.
    Kilic M; Taskesen M; Coskun T; Gürakan F; Tokatli A; Sivri HS; Dursun A; Schmitt S; Küry S · JIMD reports · 2013
    Case reportHair Health forVitamin C
  13. Evaluation of biophysical skin parameters and hair changes in patients with acne vulgaris treated with isotretinoin, and the effect of biotin use on these parameters.
    Aksac SE; Bilgili SG; Yavuz GO; Yavuz IH; Aksac M; Karadag AS · International journal of dermatology · 2021
    Non-randomized trial60 participantsSkin Health forBiotin
  14. Generalized seborrhoeic dermatitis. Clinical and therapeutic data of 25 patients.
    Messaritakis J; Kattamis C; Karabula C; Matsaniotis N · Archives of disease in childhood · 1976
    Non-randomized trial25 participantsSkin Health forBiotin
  15. Holocarboxylase synthetase deficiency: novel clinical and molecular findings.
    Tammachote R; Janklat S; Tongkobpetch S; Suphapeetiporn K; Shotelersuk V · Clinical genetics · 2010
    Case series4 participantsSkin Health forBiotin
  16. Exploring the Impact of Hydrolyzed Collagen Oral Supplementation on Skin Rejuvenation: A Systematic Review and Meta-Analysis.
    Dewi DAR; Arimuko A; Norawati L; Yenny SW; Setiasih NL; Perdiyana A; Arkania N; Nadhira F; Wiliantari N · Cureus · 2024
    Meta-analysis967 participants14 studies pooledSkin Health forCollagen
  17. Effects of collagen-based supplements on skin's hydration and elasticity: A systematic review and meta-analysis.
    Danessa G; Notario D; Regina R · Indian journal of dermatology, venereology and leprology · 2025
    Meta-analysis646 participants10 studies pooledSkin Health forCollagen
  18. Oral intake of collagen peptide NS improves hydration, elasticity, desquamation, and wrinkling in human skin: a randomized, double-blinded, placebo-controlled study.
    Lee M; Kim E; Ahn H; Son S; Lee H · Food & function · 2023
    Randomized trial100 participantsSkin Health forCollagen
  19. Oral Intake of Low-Molecular-Weight Collagen Peptide Improves Hydration, Elasticity, and Wrinkling in Human Skin: A Randomized, Double-Blind, Placebo-Controlled Study.
    Kim DU; Chung HC; Choi J; Sakai Y; Lee BY · Nutrients · 2018
    Randomized trial64 participantsSkin Health forCollagen
  20. Effects of hydrolyzed collagen supplementation on skin aging: a systematic review and meta-analysis.
    de Miranda RB; Weimer P; Rossi RC · International journal of dermatology · 2021
    Meta-analysis1,125 participants19 studies pooledSkin Health forCollagen