One A Day Womens Market Report: Sales Volume, Market Share, Leading Brands & Market Trends
One A Day Womens sales on Amazon US totaled 624,000 units in July 2026 (▼ 17.4% vs. the prior month), generating an estimated $14,932,380 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 52.9% of unit volume and 56.2% of revenue, while a typical listing is priced at $24.17. The keyword itself pulled 20,617 Amazon queries over the same period (▲ 4.8% MoM).
Zooming out to the 12-month window ending July 2026, the one a day womens Top 50 moved 7,875,000 units and $182,329,128 in cumulative sales — an average of 656,250 units and $15,194,094 per month. Monthly throughput topped out at 755,000 units in June 2026 and dipped to 396,700 in May 2026, leaving the latest reading 3.8% lower than August 2025.
One A Day Womens 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
624K
▼ 17.4% MoM
Monthly Revenue 2026/07
$14.9M
▼ 18.2% MoM
Top 10 Market Share 2026/07
52.9%
One A Day Womens Market Share & Sales Concentration on Amazon US — July 2026
The most-sold one a day womens listing on Amazon US in July 2026 is ASIN B00Y8MP4G6 (Brand: Garden of Life), which sold 90,000 units at $30.39 apiece — equal to 14.4% of every unit tracked in this report and 2.3× the volume of the No. 2 listing.
The Top 10 ASINs account for 330,000 units and $8,396,500 in July 2026 — 52.9% of unit volume and 56.2% of revenue among all 50 ranked ASINs in this report.
Sales Volume of Top ASINs for 'One A Day Womens' on Amazon
July 2026
Is 52.9% 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
B00Y8MP4G6
Garden of Life Dr. Formulated Once Daily Women's Probiotics, 50B CFU, 30ct | 50 Billion CFU & Organic Prebiotics – Vaginal Health, Digestive Support, Immune Support, Dairy Free
90K
▼ 10.0%vs. prior month
$2.4M
latest month
12-month trend
B09KCCVL9V
Centrum Centrum Silver Women's Multivitamin for Women 50 and Over, 200 Tablets | Contains Vitamin D3, B Vitamins, Calcium, and Antioxidants, Non-GMO Ingredients, Supports Memory and Cognition, GLP-1 Support
40K
▲ 33.3%vs. prior month
$732.4K
latest month
12-month trend
B00FOTMGTU
THORNE Basic Nutrients 2/Day, Vitamin & Mineral Formula, 60 Capsules | Comprehensive Daily Multi-Vitamin with Optimal Bioavailability, Gluten, Dairy & Soy-Free, NSF Contents Certified
40K
▲ 0.0%vs. prior month
$1.4M
latest month
12-month trend
B0DR8KDZDS
Vitafusion Women's Multivitamin Gummy | Yummy Berry Flavor | 120 Gummies | with Biotin, Calcium, Zinc, Vitamins A, B, C, D, E | Gluten and Dairy Free Adult Supplement
30K
▼ 25.0%vs. prior month
$256.5K
latest month
12-month trend
B07H8LBDTG
OLLY Women's Multivitamin, Supports Overall Wellness,* Biotin - 130 Count | Women's Wellness, A Multitasking Blend of Vitamins, Biotin & Folic Acid, Gluten Free, No Synthetic Colors or Flavors
30K
▲ 0.0%vs. prior month
$483.3K
latest month
12-month trend
B09QBKGDLS
ONE A DAY Multivitamin for Women- Daily Vitamins for Woman with Biotin, Calcium, Folic Acid, Iron & Zinc, Complete Women’s Vitamins, 200 Ct (Packaging May Vary)
20K
▼ 33.3%vs. prior month
$328.4K
latest month
12-month trend
Unlock to view all Top 50 ASIN competitors and their sales contributions
Best One A Day Womens Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)
Garden of Life is the best-performing one a day womens brand in July 2026, moving 90,000 units across 1 ASIN for 27.3% of Top 10 volume. OLLY follows with 50,000 units (15.2%), ahead of Centrum on 40,000 units (12.1%).
Volume is spread across 9 brands, with the top three holding 54.5% between them. No single label controls the shelf, which usually leaves room for a well-differentiated listing to take share without outspending an incumbent. Average selling prices among the leaders run from $14.68 to $30.39, which frames the price band a competing listing has to justify.
Brand share of Top 10 volume
Garden of Life
1 ASIN in Top 10
27.3%
Units
90K
Revenue
$2.4M
Avg. price
$30.39
B00Y8MP4G6
$30.39·★4.6·60.1K revsGarden of Life Dr. Formulated Once Daily Women's Probiotics, 50B CFU, 30ct | 50 Billion CFU & Organic Prebiotics – Vaginal Health, Digestive Support, Immune Support, Dairy Free
Units sold90K
OLLY
2 ASINs in Top 10
15.2%
Units
50K
Revenue
$718.1K
Avg. price
$14.88
B07H8LBDTG
$16.88·★4.6·47.8K revsOLLY Women's Multivitamin, Supports Overall Wellness,* Biotin - 130 Count | Women's Wellness, A Multitasking Blend of Vitamins, Biotin & Folic Acid, Gluten Free, No Synthetic Colors or Flavors
Units sold30KB014G4AY1A
$12.88·★4.6·47.8K revsOLLY Women's Multivitamin, Supports Overall Wellness,* Biotin - 90 Count | Women's Wellness, A Multitasking Blend of Vitamins, Biotin & Folic Acid, Gluten Free, No Synthetic Colors or Flavors
Units sold20K
Centrum
1 ASIN in Top 10
12.1%
Units
40K
Revenue
$732.4K
Avg. price
$14.68
B09KCCVL9V
$14.68·★4.8·35.2K revsCentrum Centrum Silver Women's Multivitamin for Women 50 and Over, 200 Tablets | Contains Vitamin D3, B Vitamins, Calcium, and Antioxidants, Non-GMO Ingredients, Supports Memory and Cognition, GLP-1 Support
Units sold40K
Trending One A Day Womens 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, one ASIN forced its way in: B01DHKOS3O booked 20K units at $17.46, with ▲ 0.0% MoM change. On the growth side, B09PGKQ6Q1 leads positive momentum with ▲ 100.0% MoM growth on 6K units, with B09KCCVL9V close behind at ▲ 33.3% MoM on 40K units.
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.
B01DHKOS3O
Vimerson Health Multivitamin for Women: Methylated B Vitamins, Chelated Minerals and Bioavailable D3 for Focus and Energy Support – Daily Womens Multivitamins and Multiminerals – 60 Capsules
Price
$17.46
Rating
4.5
Reviews
18.2K
Latest month sales
B09PGKQ6Q1
MARYRUTH'S Liquid Morning Multivitamin for Women, Men & Kids, 15 Servings | For Women, Men & Kids
Price
$21.95
Rating
4.5
Reviews
39.1K
Latest month sales
B09KCCVL9V
Centrum Centrum Silver Women's Multivitamin for Women 50 and Over, 200 Tablets | Contains Vitamin D3, B Vitamins, Calcium, and Antioxidants, Non-GMO Ingredients, Supports Memory and Cognition, GLP-1 Support
Unlock to view ASIN details and product titles
Price
$14.68
Rating
4.8
Reviews
35.2K
Latest month sales
One Amazon dataset. Two ways to use it.
Every number in this one a day womens 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