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Source of Life Liquid Natural Delicious Tropical Fruit Flavor

NaturesPlus
4.6
★ ★ ★ ★ ★
(562 ratings)
Iodine 150 mcg
Vitamin B12 1000 mcg
Manganese 4 mg
PABA 15 mg
Vitamin B6 25 mg
Thiamin 25 mg
Vitamin K 80 mcg
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Score89

A high-potency liquid multivitamin with active B12, Vitamin K2, and a whole-food complex.

How scoring works
Quantity:30 Fluid Ounce(s) • (30 servings)
Goals:
General Health
Heart Health
Energy
Mood Support
Brain Health
Productivity Boost
Cardiovascular Support
Hair Health

Score 89

A high-potency liquid multivitamin with active B12, Vitamin K2, and a whole-food complex.

How scoring works
$41.61($1.38 per serving)
Vitacost
$ 43.03
iHerb
$ 41.61
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Analysis

By delivering nutrients in a liquid form, this formula avoids the breakdown time required for tablets, allowing for faster uptake into your system. It features high doses of Vitamin B12 and Vitamin K2 to support both energy levels and cardiovascular integrity. The inclusion of Korean Ginseng provides additional adaptogenic support to help you manage daily mental fatigue.

It contains a huge variety of fruit and vegetable extracts, which provide natural antioxidants and cofactors. While it is highly bioavailable, the addition of sugars for flavor may be a concern for some users. It is an excellent, comprehensive daily supplement for families or individuals seeking a palatable and effective liquid alternative.

Pros

  • Rapid liquid absorption
  • High-quality methylcobalamin (1000mcg)
  • Includes Vitamin K2 and Ginseng

Cons

  • Higher cost per serving
  • Contains 10g of carbohydrates per dose
  • Requires refrigeration after opening

Warnings

  • High B12 dose
  • Ginseng may affect some users' sleep if taken late

Nutrient quality

92 Highest impact

High-quality forms like methylcobalamin and methylfolate provide superior bioavailability for essential metabolic support. The formula is broad, ensuring several nutritional pathways are covered for daily wellness.

Ingredient transparency

95 Highest impact

The label discloses a high level of detail for each nutrient and botanical component used. While the formula is complex, the transparency regarding forms and amounts allows for accurate consumer evaluation.

Customer satisfaction

91 Highest impact

User ratings are strong and indicate satisfaction with the energy-supporting effects and general health maintenance. Positive reviews highlight the palatable taste and the convenience of the liquid multi format.

Value for money

76 High impact

The price is higher than standard multis, reflecting the broad formula and use of premium coenzyme forms. Value is high for those seeking a comprehensive, high-quality liquid all-in-one supplement.

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Goals

General Health
Impact
Highest effect
A Goal FitA Strength of SupportA CoverageA- Formula Quality

Vitamin B12 and a whole-food complex provide metabolic support and antioxidant protection in a liquid delivery system.

Bioflavonoids and Korean Ginseng are included to support daily vitality and systemic wellness. This comprehensive liquid formula focuses on bridging nutritional gaps with bioavailable nutrient forms.

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Heart Health
Impact
Highest effect
A Goal FitA+ Strength of SupportA- CoverageB+ Formula Quality

Cardiovascular protection is achieved through high doses of active methylfolate and vitamin B12, which are essential for homocysteine regulation. The inclusion of vitamin K2 in both MK-4 and MK-7 forms further supports arterial health by managing calcium deposition.

Liquid delivery ensures high bioavailability for these core nutrients, including a therapeutic dose of methylcobalamin. The broad formula provides comprehensive support but at a premium price point compared to standalone options.

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Energy
Impact
Highest effect
A- Goal FitA+ Strength of SupportA- CoverageA- Formula Quality

This liquid multivitamin features bioactive methylcobalamin and 25mcg of vitamin D3 to support metabolic fuel utilization. The liquid format appears well-aligned for maximizing absorption potential through mucosal and digestive pathways.

Metabolic cofactors and ginsenosides provide broad support for daily vitality and long-term stamina.

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Mood Support
Impact
Highest effect
B+ Goal FitA Strength of SupportA- CoverageA Formula Quality

This liquid multivitamin features a therapeutic 1,000mcg dose of methylcobalamin and L-methylfolate to support methylation and cognitive health. The liquid delivery format ensures rapid and efficient uptake of these critical brain-active cofactors.

Adaptogenic support is provided by Korean ginseng to assist with stress management and resilience against mental fatigue. This comprehensive formula addresses the metabolic foundations of emotional health with high bioavailability.

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Brain Health
Impact
Highest effect
A- Goal FitA Strength of SupportB+ CoverageB Formula Quality

Bioactive methylcobalamin and active methylfolate in a liquid format support efficient neurotransmitter synthesis and neuroprotection.

High thiamin levels contribute to cerebral energy metabolism while ginseng may assist with mental stamina.

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Productivity Boost
Impact
Highest effect
B+ Goal FitA- Strength of SupportB+ CoverageB+ Formula Quality

Liquid B-vitamins and Korean ginseng are utilized to provide a rapid boost in metabolic energy and alertness. The inclusion of methylcobalamin supports neurological health, while ginseng provides adaptogenic support for mental performance.

The liquid format allows for potentially faster absorption of B12, which is critical for efficient brain metabolism. Bioactive folate and B12 support the cognitive foundations necessary for maintaining focus during tasks.

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Ingredients

IngredientAmount per serving
Calories
40 Calorie(s)
Total Carbohydrates
10 Gram(s)
Vitamin A (Beta-Carotene, Vitamin A Palmitate)
 3000 mcg RAE
Vitamin D3
25 mcg
Vitamin E (D-Alpha-Tocopheryl Acetate)
 134 mg
Vitamin K2 (Menaquinone-4, Menaquinone-7)
 80 mcg
Thiamine (Thiamine Mononitrate, Vitamin B1)
 25 mg
Riboflavin (Vitamin B2)
 25 mg
Niacin (Niacinamide)
 40 mg NE
Vitamin B6 (Pyridoxine Hydrochloride)
 25 mg
Folate (Calcium L-5-Methyltetrahydrofolate)
 667 mcg DFE
Vitamin B12 (Methylcobalamin)
 1000 mcg
Biotin
100 mcg
Pantothenic Acid (Calcium Pantothenate)
 60 mg
Choline (Choline Bitartrate)
 13 mg
Calcium (Calcium Citrate)
 50 mg
Iron (Iron Gluconate)
 4.5 mg
Iodine (Potassium Iodide)
 150 mcg
Magnesium (Magnesium Citrate)
 25 mg
Zinc (Zinc Gluconate)
 7.5 mg
Selenium (Selenium Amino Acid Chelate)
 25 mcg
Copper (Chlorophyllin)
 1.5 mg
Manganese (Manganese Gluconate)
 4 mg
Chromium (Chromium Picolinate)
 20 mcg
Molybdenum (Molybdenum Aminoate Complex)
 37.5 mcg
Potassium (Potassium Citrate)
 50 mg
Source-70 Whole Food Complex
500 mg
Citrus Bioflavonoid Complex (Citrus limon/sinensis)
 100 mg
Korean Ginseng (Ginsenosides F, Ginsenosides R)
 50 mg
Inositol
30 mg
PABA
15 mg
Chlorophyll (Copper Chlorophyllin, Spirulina)
 4 mg
Gluten Free Adults 18–50 Vegetarian
Report overview
Vitamin B12 (Methylcobalamin) · 1000 mcg OverallScore84
A+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyF Value
This liquid formula provides a therapeutic 1,000 mcg dose of bioactive methylcobalamin. The delivery method is excellent for absorption, and the label clearly discloses the quality B12 source. It is priced at a premium due to its comprehensive multi-nutrient profile.
View ingredientView products
Iodine (Potassium Iodide) · 150 mcg OverallScore84
A+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyF Value
A large-format liquid multivitamin providing highly absorbable iodine and a wide spectrum of nutrients. It is a great choice for families or individuals who prefer a pleasant-tasting liquid alternative to pills.
View ingredientView products
Manganese (Manganese Gluconate) · 4 mg OverallScore76
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyF Value
This liquid multivitamin provides an effective therapeutic dose of manganese in a bioavailable organic form. It meets the collection's target for mineral efficacy perfectly, although it is a high-cost option.
View ingredientView products
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