What Amazon Marketplace Data Reveals About the Indian Adult Diaper Market: A Category Analysis

A note on data and scope

This analysis is based entirely on Amazon Marketplace data. Amazon is used as the primary source because it is the only major Indian e-commerce marketplace that makes sales indicators — such as "Bought in the past month" counts, pricing history, and product-level reviews — publicly accessible at a level of detail that supports structured analysis. Other marketplaces do not publish comparable data.

The data reflects a single month and is used as a structured cross-section of the market rather than a trend analysis. Seasonal variation, promotional spikes, and month-on-month shifts are outside the scope of this study.

The offline channel — pharmacies, hospital procurement, large-format retail — is not covered. This is a deliberate scope boundary, not a data gap. The purpose of this analysis is to demonstrate what Amazon Marketplace data alone can reveal: category size, competitive dynamics, customer behaviour, and pricing patterns. The findings are intended for businesses competing in or entering marketplace-heavy categories where Amazon is a primary or significant channel.

Indian Adult Diaper Market: Size and Growth

Estimates place the Indian adult diaper market between ₹1,800 crore and ₹2,500 crore, with double-digit annual growth expected over the next five years. Differences arise primarily from varying definitions of adult incontinence products and the level of the value chain being measured (manufacturer sales versus retail sales). The category is expected to benefit from an ageing population, increasing home healthcare adoption and greater acceptance of adult incontinence products.

As a validation exercise, a bottom-up estimate was developed using Amazon marketplace data. Annual Amazon sales were estimated by analysing the leading brands in the category and extrapolating monthly sales using Amazon's "Bought in the past month" indicators. Since Amazon reports sales in ranges (e.g., 500+, 1K+, 2K+) rather than exact figures, two scenarios were considered. The conservative scenario uses the lower bound of each range, while the aggressive scenario assumes sales are closer to the upper end of the reported range.

The marketplace-derived estimates broadly support the published market forecasts, particularly when allowance is made for Amazon's bucketed reporting methodology, sales through smaller brands, and channels not captured in marketplace data such as institutional sales, hospitals and traditional retail.

India's changing demographics supports the long-term growth outlook for the adult diaper category. Government-backed population projections indicate that the number of Indians aged 60 years and above is expected to increase from approximately 10.4 crore in 2011 to 31.9 crore by 2050, representing nearly one-fifth of the country's population. This implies that India will add more than 21 crore elderly citizens over the next four decades.

Source: Ministry of Statistics and Programme Implementation (MOSPI), Elderly in India 2021; National Commission on Population projections.

The resulting increase in home healthcare requirements, age-related conditions and incontinence management needs is expected to provide a strong structural tailwind for the adult diaper category.

How the Category is Structured: Formats, Sizes and Pack Architecture

Styles

There are only two styles:

• Pant/Pull-Up Style commands the largest and fastest-growing share of the market. These products resemble regular underwear, can be pulled on and off independently, and are designed for active users who are ambulatory but incontinent. Their discreet, undergarment-like appearance makes them socially acceptable and easy to use without assistance.
• Tape-style (flat) diapers have strong penetration in institutional settings — hospitals, care homes, and long-term care facilities — where patients are largely bedridden and caregivers perform all changes. These products prioritise absorption capacity and ease of application by a third party over aesthetics or discretion.

Sizes

There are four predominant sizes defined as per waist sizes: Small, Medium, Large and Extra Large. There is no standardization, and hence we have taken the sizes as mentioned on the packs.

Pack Sizes

Adult diapers are available in three pack sizes – 10s, 20s and 30s. Bulk packing of 100s is available for institutional orders through the offline channel. The market shares across e-commerce marketplaces are as follows:

The Amazon Marketplace Analysis reveals several interesting insights into customer buying behaviour, pack-size preferences and order economics.

The average order comes to 23 units of diapers, indicating that consumers are not buying for trial or for occasional uses. They have regular monthly requirements and are fulfilling them through e-commerce platforms. A quick survey of offline stores (pharmacies and large format stores like Reliance Mart) shows that they only stock adult diapers in units of 10s and their clients usually purchase single packs.

This suggests that e-commerce is not merely another sales channel; it may be influencing purchasing behaviour by enabling customers to consolidate larger monthly requirements into a single order. Offline stores remain important for emergency replenishment and for product introduction.

While the number of orders of a single unit of 10s accounts for 59% of the total orders, it accounts for only 27% of the total order value.

The number of orders for multi-packs (multiple units of 10s or 20s or 30s) accounts for 41% of the orders but 73% of the order value.

The demand is clearly for multiple units of 10s, only a few of the sellers have pack sizes of 20s and 30s, they rely on pack sizes of 10s. None of the top 4 sellers on Amazon had pack sizes of 20s and 30s.

Why would they do this? Multipacks appear to offer several potential advantages:

• Lower primary packaging costs
• Lower fulfilment costs
• Lower logistics costs

The reduction in these costs may partially or fully offset the additional complexity associated with maintaining multiple SKUs.

Despite an average order size of approximately 23 diapers, leading brands continue to rely primarily on packs of 10. This raises an interesting question: are the operational advantages of a dedicated 20- or 30-pack being outweighed by manufacturing, inventory and channel-management considerations, or does an unexploited opportunity exist? A detailed cost-to-serve analysis covering packaging, fulfilment and freight economics would be required to answer this conclusively.

Pricing Behaviour on Amazon Marketplace

Pricing analysis of Amazon Marketplace Data reveals several instances where customer behaviour diverges from traditional price-driven purchasing assumptions.

Discounts

Sellers are using three methods to push for discounts:

• The primary discount on MRP:These typically are about 50%. These are the most popular. Some sellers have tried to align the MRPs to the selling prices by reducing the discounts, but haven't seen any traction in sales.
• “Subscribe and Save”: An additional 5% on the selling price on enrolling for periodic orders at the time of the primary purchase. These appear to be effective looking at the number of sellers who have opted for these.
• Coupons: 5% off at the time of checkout. Limited usage seems to suggest that they are not effective.

These are apart from the payment mode discounts or coupons.

Selling prices and customer buying behaviour

Customers are not flocking to the least priced option. Theory states that a customer would select the lowest cost option among all available options. E-commerce websites like Amazon provide a unique platform for price comparison. Yet, the theory fails this critical test in two cases:

1. Customers are not preferring the lowest-priced products among competitive brands. This trend can be attributed to marketing/advertising spends, brand image, or reviews.

2. What is surprising that even among the same brand, customers do not seem to prefer the least cost option. Rather than giving multiple orders of least cost option, they seem to be opting for the one best suited for their requirement. Is it possible that the differences between these options is not high enough to compel customers to switch?

Though customers would get 80 units (or 8 packs of 10s each) at Rs. 329 per pack, only 4800 pack sizes of 10s are sold at this price points. Customers prefer to purchase 3 packs of 10s at an average price of Rs. 410/- though the purchase is costlier by almost 25%. The brand sold 25% more quantity at 25% more price.

(Figures based on one month's data for Medium size, Pant type adult diapers of the market leader).

Product Detail Page Layout

The Amazon Product Detail Pages (PDPs) also revealed differences in how brands presented their products. Some brands consolidated multiple sizes and pack quantities within a single product page, allowing customers to compare options and prices without leaving the page. Other brands created separate product pages for different pack quantities, requiring customers to navigate across multiple pages to compare prices and configurations.

Interestingly, the four largest brands in the category, which together account for more than 80% of marketplace sales, predominantly use the first approach. These brands also derive approximately 74% of their order value from higher pack quantities. Pack sizes of 30s and 60s alone account for around 53% of their order value.

While the analysis does not establish a direct relationship between PDP structure and sales performance, the findings suggest that product presentation and ease of comparison may influence customer purchasing behaviour. This relationship warrants further investigation.

Key Findings and Questions for Further Investigation

Taken together, the findings suggest that customers may be optimising for convenience and monthly requirements rather than lowest unit price. Leading brands appear to support this behaviour through PDP design, pack architecture and subscription mechanisms.

E-commerce Strategy Implications for Marketplace-Heavy Categories

The analysis suggests that success in the adult diaper category may depend on more than competitive pricing.

The findings indicate that:

• Customers purchase primarily for ongoing consumption rather than trial.
• Larger order values contribute disproportionately to category sales.
• Product presentation may influence pack-size selection.
• Perceived value may be more important than lowest price.

Businesses entering or expanding in the category may therefore benefit from evaluating pack architecture, PDP design, subscription models and fulfilment economics alongside traditional pricing strategies.

This analysis was developed using only publicly available Amazon Marketplace data, without access to internal brand data, sales systems, or retailer information. For businesses operating in marketplace-heavy categories, a structured Amazon Marketplace analysis of your own category can be completed in two to three weeks and can inform pricing architecture, pack strategy, PDP design, and competitive positioning. The questions flagged above for further investigation represent a natural starting point for that engagement.