B 12 Vitamins For Women Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
B 12 Vitamins For Women sales on Amazon US totaled 511,000 units in July 2026 (▼ 17.0% vs. the prior month), generating an estimated $9,614,730 in revenue across the 50 top-ranked ASINs for this search term. Demand is heavily concentrated at the top of the ranking — the ten best performers capture 47.0% of unit volume and 54.6% of revenue, while a typical listing is priced at $17.09. The keyword itself pulled 18,534 Amazon queries over the same period (▲ 0.6% MoM).
Zooming out to the 12-month window ending July 2026, the b 12 vitamins for women Top 50 moved 5,924,400 units and $108,653,332 in cumulative sales — an average of 493,700 units and $9,054,444 per month. Monthly throughput topped out at 616,000 units in June 2026 and dipped to 318,000 in May 2026, leaving the latest reading 1.0% higher than August 2025.
B 12 Vitamins For Women Sales Trend (Trailing 12 Months)
Based on the top 50 ASINs by monthly sales for this keyword
2025/08
2025/09
2025/10
2025/11
2025/12
2026/01
2026/02
2026/03
2026/04
2026/05
2026/06
2026/07
Monthly Sales 2026/07
511K
▼ 17.0% MoM
Monthly Revenue 2026/07
$9.6M
▼ 16.0% MoM
Top 10 Market Share 2026/07
47.0%
B 12 Vitamins For Women Market Share & Sales Concentration on Amazon US — July 2026
The most-sold b 12 vitamins for women listing on Amazon US in July 2026 is ASIN B00DYSUQR2 (Brand: Nature's Bounty), which sold 50,000 units at $9.12 apiece — equal to 9.8% of every unit tracked in this report and 25% ahead of the No. 2 listing.
The Top 10 ASINs account for 240,000 units and $5,253,400 in July 2026 — 47.0% of unit volume and 54.6% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'B 12 Vitamins For Women' on Amazon
July 2026
Is 47.0% Top 10 share highly concentrated?
Ask AI to evaluate competition, market structure, and entry opportunities using ’s tracked Amazon sales, ranking, and keyword data.
Powered by ASINSIGHT MCP · Grounded in ASINSIGHT Amazon data
Top 5 Volume Share breakdown
B00DYSUQR2
Nature's Bounty Vitamin B12 1000 mcg Supplements, Supports Energy Metabolism, 200 Ct
50K
▼ 16.7%vs. prior month
$467K
latest month
12-month trend
B00DS5BGDY
Nature Made Vitamin B12 1000 mcg, Energy Metabolism Support, 150 Softgels | B12 Vitamins 1000 mcg, Energy Metabolism Support Supplement for Women and Men, Gluten Free, 150 Day Supply
40K
▼ 20.0%vs. prior month
$630.8K
latest month
12-month trend
B00O59SH3E
THORNE Basic Prenatal, Includes Active Folate, Choline & Iron, 90 Capsules | Comprehensive Daily Multi-Vitamin for Pregnant & Nursing Women, Gluten, Dairy & Soy-Free, NSF Contents Certified
30K
▲ 0.0%vs. prior month
$1.1M
latest month
12-month trend
B0938NKV1G
L Methyl Folate 15mg Plus Methyl B12 Cofactor – High Potency, Active 5-MTHF Form - Supports Mood, Methylation, Cognition – Bioactive Forms of Vitamin B9 & B12 (60 Capsules – 60 Servings)
30K
▼ 25.0%vs. prior month
$659.4K
latest month
12-month trend
B002BKW1YA
THORNE Vitamin B12 1,000 mcg, Active Methylcobalamin, 60 Capsules | Supports Methylation, Heart & Nerve Health, Cognitive Function & Healthy Homocysteine Levels*, NSF Contents Certified
20K
▲ 0.0%vs. prior month
$476.2K
latest month
12-month trend
B00CBYG1L0
Pure Encapsulations O.N.E. Multivitamin, 60 Capsules | Once Daily Multivitamin with Antioxidant Complex Metafolin, CoQ10, and Lutein to Support Vision, Cognitive Function*
20K
▼ 33.3%vs. prior month
$942.2K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best B 12 Vitamins For Women Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Nature Made is the best-performing b 12 vitamins for women brand in July 2026, moving 60,000 units across 3 ASINs for 25.0% of Top 10 volume. Nature's Bounty follows with 50,000 units (20.8%), ahead of THORNE on 50,000 units (20.8%).
With 6 brands splitting the Top 10 and 66.7% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $9.12 to $30.15, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Nature Made
3 ASINs in Top 10
25.0%
Units
60K
Revenue
$874.6K
Avg. price
$13.54
B00DS5BGDY
$17.48·★4.7·45.6K revsNature Made Vitamin B12 1000 mcg, Energy Metabolism Support, 150 Softgels | B12 Vitamins 1000 mcg, Energy Metabolism Support Supplement for Women and Men, Gluten Free, 150 Day Supply
Units sold40KB005DXM32M
$10.65·★4.7·29.9K revsNature Made Vitamin B12 1000 mcg Time Release Tablets, 160 Tablets | B12 Vitamins for Women and Men, Dietary Supplement for Energy Metabolism Support, Gluten Free, 160 Day Supply
Units sold10KB00CBXSO4I
$12.49·★4.7·14.6K revsNature Made Maximum Strength Vitamin B12 5000 mcg Softgels, 60 Softgels | Energy Metabolism Support Supplement for Men and Women, Helps Reduce Fatigue for Those Low in Vitamin B12, 60 Day Supply
Units sold10K
Nature's Bounty
1 ASIN in Top 10
20.8%
Units
50K
Revenue
$467K
Avg. price
$9.12
B00DYSUQR2
$9.12·★4.7·77.2K revsNature's Bounty Vitamin B12 1000 mcg Supplements, Supports Energy Metabolism, 200 Ct
Units sold50K
THORNE
2 ASINs in Top 10
20.8%
Units
50K
Revenue
$1.6M
Avg. price
$30.15
B00O59SH3E
$37.00·★4.3·6.6K revsTHORNE Basic Prenatal, Includes Active Folate, Choline & Iron, 90 Capsules | Comprehensive Daily Multi-Vitamin for Pregnant & Nursing Women, Gluten, Dairy & Soy-Free, NSF Contents Certified
Units sold30KB002BKW1YA
$23.30·★4.7·3.9K revsTHORNE Vitamin B12 1,000 mcg, Active Methylcobalamin, 60 Capsules | Supports Methylation, Heart & Nerve Health, Cognitive Function & Healthy Homocysteine Levels*, NSF Contents Certified
Units sold20K
Trending B 12 Vitamins For Women Products — Growth Leaders & New Top 10 Entrants
Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, 3 ASINs forced its way in: B005DXM32M booked 10K units at $10.65, with ▲ 0.0% MoM change.
The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.
B005DXM32M
Nature Made Vitamin B12 1000 mcg Time Release Tablets, 160 Tablets | B12 Vitamins for Women and Men, Dietary Supplement for Energy Metabolism Support, Gluten Free, 160 Day Supply
Price
$10.65
Rating
4.7
Reviews
29.9K
Latest month sales
B0058HX9GC
Pure Encapsulations B12 Folate, 60 Capsules | Energy Supplement to Support Nerves, Energy Metabolism and Cognitive Function Support*, with Vitamin B Folate as Metafolin
Price
$22.50
Rating
4.8
Reviews
3.4K
Latest month sales
B00CBXSO4I
Nature Made Maximum Strength Vitamin B12 5000 mcg Softgels, 60 Softgels | Energy Metabolism Support Supplement for Men and Women, Helps Reduce Fatigue for Those Low in Vitamin B12, 60 Day Supply
Unlock to view ASIN details and product titles
Price
$12.49
Rating
4.7
Reviews
14.6K
Latest month sales
One Amazon dataset. Two ways to use it.
Every number in this b 12 vitamins for women report comes from the Amazon market data ASINSIGHT tracks. Pick how you want to work with it.
Explore the full data
Browse the complete, structured picture in a ready-made interface — and keep tracking it as the market moves.
- Organic vs. ad traffic shifts per product
- Hourly rank and search-volume tracking
- Competitor ASINs and historical trends
Starts with a free ASINSIGHT account
Analyze the data your way
Connect the same data to ChatGPT, Claude or Cursor, then combine any dimensions to answer your own questions.
- Combine product, keyword, sales & ranking data freely
- Follow up in your own words, no fixed reports
- Works in ChatGPT, Claude & Cursor
20,000 credits/mo free, no credit card