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  Ruhisen Quality Promise

We Test Before
You Trust

Our Supima Cotton T-shirts are sent to an independent lab before they reach you. You get the results, not just the promise.

The Fabric

What Makes Supima Cotton Different

Supima Cotton is grown from 100% extra-long staple Pima cotton fibres — longer, stronger, and softer than standard cotton. The result is a fabric that feels noticeably lighter against your skin, holds colour longer, and lasts through more washes without pilling or losing its shape. It is used in a small fraction of the world's cotton production.

Extra-Long Staple Fibres Moisture-Wicking Colour-Retaining Breathable Weave Skin-Friendly Comfort
  Important Note

Lab testing applies to our Supima Cotton T-shirt range only. Other Ruhisen products are not covered by this certificate. Look for the "Lab-Tested Supima Cotton" badge on the product page to confirm a specific product is part of this tested range.

The Tests

What Gets Tested

Samples from our Supima Cotton range are sent to atlabs textiles pvt ltd for testing across six safety and quality checks.

Colorfastness
Checks whether dyes remain stable through washing, rubbing, and sunlight exposure.
pH Balance
Verifies the fabric stays within a skin-safe pH range — important for people with sensitive skin.
No Harmful Dyes
Tests for the absence of azo dyes and other restricted substances that can irritate or harm skin.
Shrinkage Control
Measures dimensional change after washing to confirm the garment holds its shape and size.
Skin-Friendly Comfort
Evaluates overall skin contact safety — that the fabric does not cause irritation under normal wear conditions.
Tensile Strength
Tests the fabric's resistance to tearing and stretching under stress, confirming durability in regular use.
The Proof

Lab-Tested Supima Cotton Quality

Below is the official certificate from atlabs textiles pvt ltd confirming our Supima Cotton T-shirts meet skin-safety and quality standards.

The certificate is available as a PDF document.

  Open Certificate PDF

  Issued by Atlabs Pvt Ltd · supima range

Shop Supima Cotton T-Shirts

Lab-tested. Premium quality. Skin-friendly comfort.

  Shop the Range