Will this work to test hair products re shampoos, conditioners, etc.

maybe and maybe not.... i would just send a quick email to the product manufacturer & ask them 2 questions: 1- what is the pH of their product(s)? and 2- will these photo strips work on your product(s)?? Overall, i would say that if the product in question is a water based product, than the strips will be close but the other chemicals may mask or interfered with the true results....

the product claims '0-14' ph but I only see seven numbers [from the picture] to compare the test strip. Can someone clarify?

The other seven numbers are in the back side of the box that you can not see in the picture. It is correct from 0 to 14 pH.

Where are these strips made? are they made in usa? thank you.

These test strips are made in Germany.

there are no instructions. how do I use them?

* Immerse the test strip briefly (for approx. 1 sec) in the sample solution.* Subsequently, compare against the pH color chart supplied with the kit.* Read off the pH.

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SEOH ColorpHast 9590-3 Test Strips 0-14 pH (Box of 100) [Misc.]

Product ID: 7419759

Details

Brand
SEOH
Manufacturer
SEOH
Number of Items
100
Ph Range
0-14
Unit Count
100 Count

🌈Full pH range 0-14

🧪Covalently bound dye, no bleeding

⏱️3-5 sec rapid results

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Description

🌈 Rapid, reliable pH testing that keeps you ahead of the curve.

INSTANT P H CLARITY - Get precise pH readings in just 3 to 5 seconds—no waiting, no guessing.
BULK READY FOR PROS - Box of 100 strips ensures you’re always prepared for continuous testing without interruption.
COMPLETE P H SPECTRUM - Accurately measure across the entire pH scale from 0 to 14 for versatile testing.
NO SAMPLE CONTAMINATION - Special covalently bound dyes prevent bleeding, keeping your samples pure.
RELIABLE IN ANY SOLUTION - Works flawlessly even in weakly buffered or lightly colored liquids—lab-grade precision anywhere.

SEOH ColorpHast 9590-3 Test Strips deliver fast, accurate pH measurements across the full 0-14 range with non-bleeding, covalently bound indicator dyes. Ideal for lab or field use, these 100-count strips provide professional-grade precision in just seconds, even in challenging solutions.

Specifications

ASIN	B003TV3GTY
Best Sellers Rank	#99,512 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #155 in pH Test Strips
Brand Name	SEOH
Customer Reviews	4.3 4.3 out of 5 stars (116)
Item Weight	0.01 Kilograms
Manufacturer	SEOH
Material Type	Indicator Dye
Model Number	9590-3
Part Number	9590-3
Sterility Rating	0-14
Unit Count	100 Count

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$108.39

Duties & taxes included

In stock

Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Ecuador.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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