What’s in Your Baby’s Diaper? NAPPEE Lab Testing Explained
Understanding NAPPEE Through Laboratory Testing
A simple guide for parents to understand what SGS tested, what the results mean, and what they don’t mean.
Choosing the right baby diaper involves more than checking size, price and absorbency. A diaper remains in close contact with a baby’s skin for long periods, so parents may reasonably want to understand its materials, construction and laboratory-tested characteristics.
That raises some perfectly reasonable questions:
What material actually touches my baby’s skin?
What is inside the absorbent part of the diaper?
What helps stop liquid from passing through the back?
Has the diaper been tested for substances such as phthalates?
What does its pH mean?
And what does “antibacterial activity” actually mean?
These are difficult things for a parent to judge simply by looking at a diaper.
That is why we decided not to simply describe NAPPEE as a “premium diaper” and expect parents to take our word for it.
A NAPPEE baby diaper sample was submitted to SGS India for laboratory testing. The testing covered antibacterial activity, odour, pH, six specified phthalates and several aspects of the diaper’s materials and construction.
This page explains those findings in everyday language, while preserving the technical facts behind them.
And just as importantly, where a laboratory result does not prove something, we’ll tell you that too.
Are NAPPEE Baby Diapers Laboratory Tested?
Yes. A NAPPEE baby diaper sample was tested by SGS India at its laboratory. The testing covered antibacterial activity, odour, pH, six specified phthalates and selected material and construction properties.
The results — and what they actually mean for parents — are explained below.
NAPPEE is a baby diaper brand marketed by Best Diapers. The SGS report identifies the tested product as “NAPPEE BABY DIAPER” and records Malaysia as the country of origin of the tested sample.
What Would You Like to Understand?
1. What touches your baby’s skin?
2. How does a diaper absorb liquid?
3. What helps prevent liquid passing through the back?
4. Why do waist and thigh fit matter?
5. What does “soft” actually mean?
7. What does “phthalates not detected” mean?
8. What does antibacterial activity mean?
9. What did the odour test find?
10. What does BIS certification mean?
NAPPEE’s Laboratory Results at a Glance
For parents who want the quick version first:
🦠 Antibacterial Activity
SGS result: Strong / Full Effect against both tested bacterial strains
The tested NAPPEE sample demonstrated strong antibacterial activity against the two specific bacteria used in the laboratory test.
What this means: A measurable antibacterial effect was demonstrated under the specified laboratory conditions.
What it does not mean: Protection against every bacterium, infection or illness.
🧪 Six Specified Phthalates
SGS result: Not detected
None of the six specified phthalates tested was detected above the laboratory reporting limit.
What this means: The laboratory did not detect the six tested phthalates above its specified reporting threshold.
What it does not mean: We should replace the laboratory terminology with an absolute claim such as “zero phthalates.”
💧 pH
SGS result: 6.2
The tested NAPPEE sample measured pH 6.2.
What this means: This is the pH value measured from the tested diaper sample under the stated laboratory method.
What it does not mean: That the diaper changes, controls or guarantees your baby’s skin pH.
👃 Odour
SGS result: Odourless
The tested sample received an “Odourless” rating under the specified test.
👶 Softness
SGS result: Soft feel
SGS’s manual assessment found the tested material to have a soft feel.
💦 Absorbent Core
SGS result: Absorbent + superabsorbent materials found
These are materials within the diaper’s absorbent core that help receive and retain liquid.
🛡️ Protective Back Sheet
SGS result: Leak-proof material found
The tested back-sheet material complied with the assessed requirement.
Important: This does not mean that a diaper can never leak. Fit, positioning, saturation and other factors can also contribute to leakage.
✓ Construction & Workmanship
SGS result: Assessed requirements complied
The tested top sheet, absorbent core, back sheet, securing mechanism and workmanship complied with their respective assessed requirements.
✓ BIS Certification
BIS Licence / Certification No.: CM/L 4100243267
Applicable Indian Standard: IS 17509:2021
First, What Exactly Did SGS Test?
SGS India tested a sample identified in its report as “NAPPEE BABY DIAPER.” The report identifies Best Diapers as the client, Malaysia as the country of origin and SGS’s facility as the testing laboratory.
The laboratory examined five broad areas:
Antibacterial activity • Odour • pH • Specified phthalates • Material properties
An Important Distinction
Being “SGS tested” does not mean that every possible characteristic of the diaper was tested.
For example, this particular report does not establish that NAPPEE can never leak, prevents diaper rash, will remain dry for a guaranteed number of hours, or is clinically proven to protect a baby’s skin.
We won’t use one laboratory result to make a different claim that wasn’t actually tested.
Instead, we’ll explain what SGS examined, what it found and what those findings can reasonably tell a parent.
Understanding a NAPPEE Diaper From the Inside Out
A disposable baby diaper can look deceptively simple from the outside. But inside are several different materials and layers, each performing a different role.
At the simplest level, you can think of a diaper as three functional areas:
YOUR BABY’S SKIN
↓
Top Sheet
The inner surface of the diaper closest to your baby
↓
Absorbent Core
The internal system that receives and retains liquid
↓
Protective Back Sheet
The outer barrier that helps prevent liquid passing through the back of the diaper
↓
CLOTHING • BED • CAR SEAT • YOUR LAP
But when we look more closely at an actual NAPPEE diaper, the construction is more detailed than these three broad functional areas.
A Closer Look Inside a NAPPEE Diaper
The illustration above shows the different material layers used in NAPPEE diaper construction. Different layers perform different functions — from providing the surface closest to the baby, to helping move liquid inward, absorbing and retaining it, and forming the protective outer structure of the diaper.
This more detailed construction helps explain why a diaper is not simply one thick piece of absorbent material. Different components work together as a system.
Important distinction: The material-source and construction descriptions shown in the illustration are based on NAPPEE product/manufacturer specifications. They should not be interpreted as individual findings or certifications made by SGS. The SGS laboratory findings discussed on this page relate only to the parameters actually examined in the applicable test report.
From the Layer Closest to Your Baby Outward
Now that you can see how the different parts fit together, let’s look at the major functional areas one by one — beginning with the layer closest to your baby’s skin — and compare their role with what SGS actually examined in the tested NAPPEE sample.
1. The Layer Closest to Your Baby: The Top Sheet
Think about the moment you open a fresh diaper.
The soft inner surface facing your baby is generally called the top sheet.
What Does the Top Sheet Do?
When your baby urinates, liquid first encounters this surface.
But the top sheet isn’t intended to store all that liquid itself. Its role is to allow fluid to move towards the absorbent material underneath while keeping the absorbent filling properly enclosed.
A simple way to think about it is as the first doorway into the diaper’s absorbent system.
What Did SGS Find in the Tested NAPPEE Sample?
✓ Nonwoven fabric was found
✓ The top sheet was expected to transfer fluid to the next layer
✓ The top sheet completely covered the absorbent filler
✓ The assessed requirements were reported as “Complies”
Why Does This Matter to a Parent?
Imagine the absorbent filling inside the diaper as a storage area.
The top sheet separates that storage area from your baby’s body. Liquid needs to move towards the absorbent material underneath, while the filling itself needs to remain contained within the diaper.
Parent Takeaway: The soft surface you can see is only the beginning of the diaper’s absorbent system. Its job is to work together with the layers underneath it.
2. Where Does the Liquid Go? Inside the Absorbent Core
Have you ever picked up your baby after several hours and noticed that the diaper feels heavier and thicker than when you first put it on?
That gives you a clue about what has been happening inside.
The Absorbent Core Does the Heavy Lifting
Beneath the top sheet is the absorbent core.
SGS examined the tested NAPPEE sample and reported the presence of:
Absorbent Material + Superabsorbent Material
The laboratory also recorded that the tested absorbent core did not show assessed defects such as lumps, oil spots, dirt or foreign material, and the relevant requirements were reported as “Complies.”
What Does “Superabsorbent” Mean?
Modern disposable diapers don’t rely only on thick material soaking up liquid like a towel.
Their absorbent cores can contain superabsorbent material, commonly referred to in the diaper industry as SAP.
When liquid reaches the absorbent core, these materials help capture and retain liquid within the diaper’s absorbent structure.
Think of a Sponge — But Only as a Starting Point
A kitchen sponge absorbs water. But squeeze it and much of that water comes straight back out.
A disposable diaper’s absorbent system is designed differently. Its job isn’t simply to take in liquid. It also needs to help retain that liquid while the diaper is being worn.
What Does This Result NOT Tell Us?
This particular finding alone does not establish how many millilitres a NAPPEE diaper can absorb, how quickly it absorbs a specified quantity of liquid, how much liquid may return towards the surface under pressure, or whether NAPPEE absorbs more than another diaper brand.
Those questions require appropriate performance testing.
Parent Takeaway: SGS confirmed the presence and assessed construction of the absorbent system in the tested NAPPEE sample. We don’t turn that finding into an unsupported claim about a guaranteed number of hours or millilitres of absorption.
🧪 Want to Know More About How Diapers Absorb Liquid?
Why does a diaper become thicker when wet? What is superabsorbent material? And why doesn’t all the liquid simply come back towards the surface when your baby sits down?
3. What Helps Stop Liquid From Passing Through the Back?
Think about where your baby may be while wearing a diaper — lying on a bed, sitting in a car seat, sleeping on your shoulder or simply sitting on your lap.
The outermost layer therefore has an important job: helping keep absorbed liquid inside the diaper rather than allowing it to pass through to clothing, bedding or other surfaces.
The Protective Back Sheet
This outer barrier is commonly called the back sheet.
✓ Leak-proof material was found
✓ The assessed back-sheet requirement was reported as “Complies”
Does This Mean a Diaper Can Never Leak?
No.
A diaper can leak even when its back-sheet material is functioning properly.
Leakage may also happen because of incorrect sizing, gaps around the thighs, incorrect positioning, folded leg gathers, saturation or delayed changing.
Parent Takeaway: A leak-proof back-sheet material and a promise that a diaper can never leak are not the same thing.
4. Why Fit Around the Waist and Thighs Matters
Have you ever experienced a leak around one thigh even though the diaper itself did not feel completely full?
That can point to a fit issue rather than an absorbency issue.
SGS examined the fastening and securing mechanism of the tested NAPPEE diaper and recorded elastic securing components, with the assessed requirements reported as complying.
A Simple Fit Check for Parents
- Is the waist secure without feeling excessively tight?
- Are there obvious gaps around either thigh?
- Are the leg gathers sitting properly rather than folded inward?
- Is the diaper centred correctly?
- Is the size appropriate for your baby’s current weight and body shape?
Parent Takeaway: Good diaper performance depends not only on absorbency, but also on fit. A technically well-constructed diaper can still leak if its size or positioning is wrong.
👶 Choosing the Right Size Matters
Two babies of the same age may have very different body weights and body shapes. That is why it is generally more useful to begin diaper selection with weight rather than age alone.
Learn More: Should You Choose a Baby Diaper by Age or by Weight? →
5. What Does “Soft” Actually Mean?
Softness is one of the first things a parent notices when touching a diaper.
But words such as “soft,” “gentle” and “premium” are also commonly used in advertising, so it is useful to know what was actually examined.
SGS manually assessed the tested NAPPEE material and reported a soft feel.
It also recorded compliance with the assessed workmanship requirements.
What Does It NOT Prove?
It does not prove that every baby will find the diaper equally comfortable, that a diaper can never cause irritation, or that it is clinically proven to prevent skin problems.
Parent Takeaway: SGS found the tested material to have a soft feel, but softness should not be confused with a clinical skin-safety claim.
Already Know Your Baby’s Size?
You don’t have to finish the technical guide before shopping.
Explore NAPPEE baby diapers by size, weight range and style.
6. What Does a pH of 6.2 Mean?
You may remember the pH scale from school. In simple terms, pH describes whether something tested is more acidic, neutral or alkaline under the conditions of the test.
pH 6.2
Measured in SGS laboratory testing
What Does pH 6.2 NOT Mean?
This result does not, by itself, prove that NAPPEE changes your baby’s skin pH or maintains a particular skin pH.
Parent Takeaway: The tested NAPPEE sample measured pH 6.2. We present that as a measurable laboratory finding rather than turning it into an unsupported skin-health claim.
7. NAPPEE Was Tested for Six Specified Phthalates
Chemical names on a laboratory report can look intimidating. For most parents, the important questions are simpler: What was tested? What did the laboratory find? And what does “not detected” actually mean?
What Did SGS Test?
DBP • DEHP • BBP • DINP • DNOP • DIDP
NOT DETECTED
for all six specified phthalates tested
The laboratory reporting limit was 50 mg/kg for each substance.
What Does “Not Detected” Mean?
It does not scientifically mean that we can prove absolutely zero molecules are present.
It means the laboratory did not detect the tested substances at or above its stated reporting limit.
That is why we use the precise statement:
“Six specified phthalates were not detected above the laboratory reporting limit.”
8. What Does “Antibacterial Activity” Actually Mean?
SGS evaluated the tested NAPPEE sample under ISO 20743:2021 against two specific bacterial strains:
Staphylococcus aureus
Klebsiella pneumoniae
Staphylococcus aureus
Antibacterial activity value: 3.12
Klebsiella pneumoniae
Antibacterial activity value: 3.39
How Does SGS Interpret Those Numbers?
Below 2: Low
2 to below 3: Effect / Significant
3 or above: Full Effect / Strong
FULL EFFECT / STRONG
Both tested bacterial strains recorded values above 3.
Does That Mean Protection Against All Bacteria or Infections?
No.
The result relates specifically to the two bacterial strains, laboratory method and test conditions used. It should not be interpreted as protection against every microorganism, infection or illness.
Parent Takeaway: The tested NAPPEE sample showed strong antibacterial activity against both bacteria used in the SGS test. This is a specific laboratory finding, not a general medical-protection claim.
9. What Did the Odour Test Find?
Parents naturally notice odour when opening a new diaper.
SGS evaluated the tested NAPPEE sample under the specified odour test and recorded:
ODOURLESS
Parent Takeaway: The tested NAPPEE sample received an “Odourless” rating under the laboratory test.
10. BIS Certification and Applicable Indian Standards
Laboratory testing and product certification are related concepts, but they are not the same thing.
BIS Certification Details
BIS Licence / Certification No.: CM/L 4100243267
Applicable Indian Standard: IS 17509:2021
What Should a Parent Understand?
A laboratory test result tells you how the submitted sample performed in the particular tests carried out.
A certification or licence relates to the applicable certification framework and scope.
Both can provide useful information, but they should not be treated as interchangeable.
11. A Parent’s Practical Diaper Checklist
A good diaper decision should not depend on one laboratory number or one advertising claim.
When comparing diapers, consider the whole product:
- Fit: Does it fit your baby’s current weight and body shape?
- Thigh seal: Are there gaps or excessive tightness around the thighs?
- Waist fit: Does the waistband sit securely without excessive pressure?
- Absorbency: Is the diaper appropriate for the situation and intended wearing period?
- Top-sheet feel: Does the inner surface feel soft and well finished?
- Construction: Does the diaper appear well made with its absorbent material properly enclosed?
- Outer barrier: Is there appropriate back-sheet construction?
- Product information: Are size, weight range and usage instructions clearly stated?
- Evidence: Are technical marketing claims backed by identifiable testing?
- Certification: If certification is claimed, are the applicable details identifiable?
A good diaper decision is not about choosing the product with the longest list of marketing claims. It is about choosing the right fit for your baby and understanding the evidence behind the claims that matter to you.
Frequently Asked Questions About NAPPEE Baby Diaper Testing
Are NAPPEE baby diapers tested by SGS?
Yes. A NAPPEE baby diaper sample was tested by SGS India at its laboratory. The reported testing covered antibacterial activity, odour, pH, six specified phthalates and selected material and construction properties.
What was the pH of the tested NAPPEE diaper?
The tested sample measured pH 6.2 under the laboratory method stated in the SGS report.
Were phthalates detected in the tested NAPPEE diaper?
Six specified phthalates were tested and all were reported as not detected above the laboratory reporting limit of 50 mg/kg each.
What does NAPPEE’s antibacterial activity result mean?
The tested NAPPEE sample demonstrated strong antibacterial activity against the two bacterial strains used in the SGS test: Staphylococcus aureus and Klebsiella pneumoniae.
Does leak-proof back-sheet material mean the diaper can never leak?
SGS found leak-proof material in the tested back sheet. It should be understood that leakage can also depend on fit, size, positioning, saturation and how long the diaper is worn.
Are NAPPEE diapers BIS certified?
Yes. The exact BIS licence/certification number and applicable Indian Standard are provided in the BIS section above.
Looking for more information about NAPPEE?
Visit our main FAQ section for answers about diaper sizing, styles, ordering, delivery and other common questions from parents.
Find the Right NAPPEE Diaper for Your Baby
You now know considerably more about what is inside a diaper and what the NAPPEE laboratory results actually mean.
The next question is:
Which NAPPEE size and style is right for my baby?
Start with your baby’s current weight. Babies of the same age can differ considerably in body weight and shape.
Step 1: Start With Your Baby’s Weight
Use the weight range stated for each NAPPEE size as your starting guide.
Step 2: Choose Your Preferred Style
Pant Style — convenient for active babies and toddlers.
Tape & Velcro Style — adjustable fastening that can be particularly useful for newborns and younger babies.
Step 3: Check the Actual Fit
Even when the weight range is correct, check the waist, thighs and overall fit because every baby’s body shape is different.
Ready to Choose Your Baby’s NAPPEE?
Shop by size, weight range and diaper style.
Technical Notes & Important Limitations
The laboratory findings discussed on this page refer to the NAPPEE baby diaper sample tested under the applicable SGS test report and the methods and conditions stated in that report.
“Not detected” refers to results below the applicable laboratory reporting limit for the substances tested.
Antibacterial findings relate specifically to the organisms, method and conditions used in the stated laboratory test.
The laboratory findings should not be interpreted as medical advice, a guarantee against skin irritation, a guarantee against leakage, or a guarantee of a specific number of hours of use unless separately supported by appropriate evidence.
BIS certification claims should be understood only within the exact scope of the valid applicable certification or licence.
Our Approach to Product Claims
At NAPPEE, we believe parents should be able to distinguish between:
what a laboratory measured,
what that result reasonably means,
and what it does not prove.
That is why this page explains both the results and their limitations.
We believe informed parents make better choices — and that product claims are more useful when the evidence behind them is clear.
