$18.54 $0.30 per serving
Product analysis
Skin Eternal brings vitamins C and E together with grape seed extract and other ingredients in a skin-focused supplement. The vitamin C portion is costly for the amount provided, which weakens value.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality38
Natural-form vitamin E is a favorable aspect of the formula. Quality of the other ingredients remains uncertain, and the vitamin C shares and total are unclear.
Ingredient Transparency67
Amounts and several forms are disclosed. Differing vitamin C declarations and missing source shares leave its exact breakdown unclear.
Value For Money36
Vitamin E compares favorably for the cost, while vitamin C and deanol offer limited value. Value for the remaining ingredients is uncertain.
Customer Satisfaction73
Customer feedback is generally positive. Several hundred ratings provide a useful but limited picture of satisfaction.
Product Focus34
The formula is linked to several goals, but its fit with them appears limited. That breadth makes the purpose less targeted.
- Format
Tablet - Container
- 120 Tablet(s)
- Per serving
- $0.30
- Customer rating
- 4.6 · 347 ratings
Goals
Impact
Moderate effect
Vitamin C · 510 mgVitamin E · 100 IU
Impact
Situational effect
Vitamin E · 100 IUVitamin C · 510 mg
Impact
Moderate effect
Vitamin E · 100 IUVitamin C · 510 mg
Impact
Limited evidence
Vitamin C · 510 mg
Impact
Lower effect
Vitamin E · 100 IUVitamin C · 510 mg
Impact
Lower effect
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Calories | 5 Calorie(s) | |
Total Carbohydrate | 1 Gram(s) | |
Vitamin C (Ascorbyl Palmitate, Vitamin C Ester) | 216 mg | |
Vitamin E (D-Alpha-Tocopheryl Succinate) | 100 IU | |
Ascorbyl Palmitate (Vitamin C Ester) | 510 mg | |
Alpha-Lipoic Acid | 100 mg | |
Proanthodyn (Grape Seed Extract) | 50 mg | |
DMAE (DMAE Bitartrate) | 50 mg |
Vitamin E (D-Alpha-Tocopheryl Succinate) · 100 IU OverallScore72
The 100 IU serving provides an amount within the range used for general antioxidant support of vitamin E at a low cost per serving. It uses natural D-Alpha-Tocopheryl Succinate. Mixed tocopherols and tocotrienols are not established in the available information.
How this ingredient is rated
Active Ingredient Quality & Bioavailability46
Vitamin E comes from natural D-Alpha-Tocopheryl Succinate. The available information does not establish mixed tocopherols or tocotrienols.
Natural (d-alpha) vs. Synthetic (dl-alpha)
D-Alpha-Tocopheryl Succinate is a natural form of vitamin E.
Mixed Tocopherol Isomer Diversity
Mixed tocopherols are not established in the available information.
Tocotrienol Complex Inclusion
Tocotrienols are not established in the available information.
Dose, Safety & Label Transparency85
The serving provides 100 IU of vitamin E, an amount within the range used for general antioxidant support. The form and total IU are specified.
Therapeutic Dosage Range
The 100 IU serving provides an amount within the range used for general antioxidant support of vitamin E.
Label Transparency and Isomer Specificity
The form and 100 IU total are specified, though individual isomer amounts are not given.
Value100
The cost per serving is low.
Cost per Natural-Form Therapeutic Serving
The cost per serving is low.
Deanol (DMAE Bitartrate) · 50 mg OverallScore88
A serving provides 50 mg of active DMAE at a high cost for that amount. It names DMAE bitartrate as the form. The information includes a DMAE-related safety warning.
How this ingredient is rated
Active Ingredient Quality & Bioavailability100
The active DMAE amount is stated, and the source is DMAE bitartrate.
Deanol Form Specificity
The form is named as DMAE bitartrate.
Active Deanol Yield Transparency
The active DMAE amount is stated as 50 mg per serving.
Dose, Safety & Label Transparency100
Each serving provides 50 mg of active DMAE. The information includes a DMAE-related safety warning.
Dosage Appropriateness
Each serving provides 50 mg of active DMAE.
Specific Safety Warnings
The information includes a DMAE-related safety warning.
Value40
The cost is high for the amount of active DMAE provided.
Price Per 100mg Active Deanol
The cost is high for the amount of active DMAE provided.
Vitamin C (Ascorbyl Palmitate, Vitamin C Ester) · 216 mg OverallScore26
Each serving provides 216 mg of vitamin C at a high cost per gram. The estimate uses the full product price, so it may overstate the cost of vitamin C alone. It uses ascorbyl palmitate. Other vitamin C sources and their proportions are unclear. It also contains sweeteners.
How this ingredient is rated
Active Ingredient Quality & Bioavailability30
Vitamin C comes from ascorbyl palmitate. Other vitamin C sources and their proportions are unclear.
Vitamin C Chemical Form & Delivery System
Vitamin C comes from ascorbyl palmitate. Other vitamin C sources and their proportions are unclear.
Gastric Comfort & pH Balance
The available information does not establish buffering for the full blend.
Dose, Safety & Label Transparency26
The serving provides 216 mg of vitamin C. The other ingredients include sweeteners.
Optimal Dosage Targeting
Each serving provides 216 mg of vitamin C.
Purity & Excipient Quality
The other ingredients include sweeteners.
Mineral & Source Transparency
The vitamin C amount is stated, but some sources or their proportions are unclear.
Value20
The estimated cost per gram of vitamin C is high; it uses the full product price and may overstate the cost of vitamin C alone.
Price per Gram of Vitamin C
The estimated cost per gram of vitamin C is high; it uses the full product price and may overstate the cost of vitamin C alone.
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Vitamin C may reduce troponin and CKMB levels after PCI and CABG: a meta-analysis.
- Vitamin C improves endothelium-dependent vasodilation by restoring nitric oxide activity in essential hypertension.
- Vitamin C supplementation improves blood pressure and oxidative stress after acute exercise in patients with poorly controlled type 2 diabetes mellitus: A randomized, placebo-controlled, cross-over study.
- Vascular benefits of vitamin C supplementation against fine particulate air pollution in healthy adults: A double-blind randomised crossover trial.
- Ascorbic acid reduces blood pressure and arterial stiffness in type 2 diabetes.
- Supplementation with vitamin E alone is associated with reduced myocardial infarction: a meta-analysis.
- Vitamin E ameliorates blood cholesterol level and alters gut microbiota composition: A randomized controlled trial.
- Effects of long-term vitamin E supplementation on cardiovascular events and cancer: a randomized controlled trial.
- Independent and combined associations of dietary antioxidant exposure with all-cause and cause-specific mortality in the general population.
- Tocotrienol rich fraction supplementation improved lipid profile and oxidative status in healthy older adults: A randomized controlled study.
- Dietary intake and blood concentrations of antioxidants and the risk of cardiovascular disease, total cancer, and all-cause mortality: a systematic review and dose-response meta-analysis of prospective studies.
- Scientific Opinion on the substantiation of a health claim related to vitamin C and increasing non haem iron absorption pursuant to Article 14 of Regulation (EC) No 1924/2006.
- Vitamin C Depletion and All-Cause Mortality in Renal Transplant Recipients.
- Associations of Serum Biomarkers of Fruit and Vegetable Intake With the Risk of Cause-Specific Mortality and All-Cause Mortality: A National Prospective Cohort Study.
- Relation between plasma ascorbic acid and mortality in men and women in EPIC-Norfolk prospective study: a prospective population study. European Prospective Investigation into Cancer and Nutrition.
- Role of Oral Vitamin 'C' on Astigmatic Errors in Phacoemulsification.
- Ascorbic acid metabolites are involved in intraocular pressure control in the general population.
- Nutritional modulation of cataract.
- Dietary n-3 Fatty Acid, α-Tocopherol, Zinc, vitamin D, vitamin C, and β-carotene are Associated with Age-Related Macular Degeneration in Japan.
- Adherence to a Mediterranean diet, lifestyle and age-related macular degeneration: the Coimbra Eye Study - report 3.