Reference label
B12 500 mcg
Life Extension
Historical reference label versions, not unique products or current retailer inventory. The reference snapshot has label entries through September 25, 2025. Detailed source labels are available for a subset.
Reference entry date: 2020-08-23 · Source market flag: on-market (historical reference status, not current stock)
Package and serving basis
- order
- 1
- quantity
- 100
- unit
- Vegetarian Lozenge(s)
- display
- 100 Vegetarian Lozenge(s)
- order
- 1
- minQuantity
- 1
- maxQuantity
- 1
- minDailyServings
- 1
- maxDailyServings
- 4
- unit
- Lozenge(s)
- inSFB
- true
Indexed ingredient names
- Vitamin B12
- Methylcobalamin
Original declared quantities
Quantities retain original units, operators, serving bases and nesting. Missing values are not zero; parent totals and components can overlap.
- Vitamin B12Forms: Methylcobalamin
Vitamin B12 (Form: as Methylcobalamin)
- servingSizeOrder
- 1
- servingSizeQuantity
- 1
- operator
- =
- quantity
- 500
- unit
- mcg
- dailyValueTargetGroup
- name
- Adults and children 4 or more years of age
- operator
- =
- percent
- 20833
- footnote
- Not disclosed
- servingSizeUnit
- Lozenge(s)
Other ingredients
- text
- Not disclosed
- ingredients
- order
- 1
- ingredientId
- 3740
- name
- Mannitol
- category
- non-nutrient/non-botanical
- ingredientGroup
- Mannitol
- uniiCode
- Not disclosed
- alternateNames
- No entries in captured source
- forms
- No entries in captured source
- order
- 2
- ingredientId
- 3789
- name
- Sorbitol
- category
- non-nutrient/non-botanical
- ingredientGroup
- Sorbitol
- uniiCode
- Not disclosed
- alternateNames
- No entries in captured source
- forms
- No entries in captured source
- order
- 3
- ingredientId
- 4058
- name
- Microcrystalline Cellulose
- category
- other
- ingredientGroup
- Cellulose
- uniiCode
- Not disclosed
- alternateNames
- No entries in captured source
- forms
- No entries in captured source
- order
- 4
- ingredientId
- 19146
- name
- Vegetable Stearate
- category
- other
- ingredientGroup
- Magnesium stearate
- uniiCode
- Not disclosed
- alternateNames
- No entries in captured source
- forms
- No entries in captured source
- order
- 5
- ingredientId
- 4312
- name
- Croscarmellose Sodium
- category
- other
- ingredientGroup
- Croscarmellose Sodium
- uniiCode
- Not disclosed
- alternateNames
- No entries in captured source
- forms
- No entries in captured source
- order
- 6
- ingredientId
- 4269
- name
- natural Strawberry flavor
- category
- botanical
- ingredientGroup
- Strawberry
- uniiCode
- Not disclosed
- alternateNames
- No entries in captured source
- forms
- No entries in captured source
Amount normalization notes (1 rows)
Original quantities remain authoritative. Conversions follow recorded rules, not equal activity or bioavailability. Nested components may overlap with parent totals.
- name_original_en
- Vitamin B12
- quantity_original
- servingSizeOrder
- 1
- servingSizeQuantity
- 1
- operator
- =
- quantity
- 500
- unit
- mcg
- dailyValueTargetGroup
- name
- Adults and children 4 or more years of age
- operator
- =
- percent
- 20833
- footnote
- Not disclosed
- servingSizeUnit
- Lozenge(s)
- normalized_amount
- 0.5
- normalized_unit
- mg
- amount_operator
- =
- normalization_status
- normalized
- normalization_rule
- mass_to_mg
- per_item_amount
- Not disclosed
- per_item_unit
- Not disclosed
- quality_flags
- No entries in captured source
- parent_row_id
- Not disclosed
- notes_original_en
- Vitamin B12 (Form: as Methylcobalamin)