MCS

Chemical-Free Certified

Multiple Chemical Sensitivity (MCS)

Safe, chemical-free clothing for people with Multiple Chemical Sensitivity. 100% organic cotton, no formaldehyde, no synthetic dyes, no fragrance.

GOTS Certified

Lab Tested

Dermatologist Recommended

Chemical-Free

Trusted Certifications

GOTS Certified

Certified by: IDFL Laboratory and Institute Inc.

License Number: GOTS-28166

B Corp

Certified B Corporation

Microbiome

Skin-friendly certification

OEKO-TEX

Product safety standard

Clinically Tested

Evaluation study support

Condition Overview

Multiple Chemical Sensitivity (MCS), also called Environmental Illness or Chemical Intolerance, is a condition where exposure to low levels of chemicals causes significant symptoms. For MCS sufferers, finding safe clothing is often one of the biggest daily challenges. Common reactions include headaches, brain fog, skin rashes, breathing difficulties, and fatigue when exposed to chemical-treated fabrics.

Common Clothing Triggers

These are fabric, finish, and construction factors that may worsen symptoms for some people.

Formaldehyde

Used in wrinkle-resistant finishes, can off-gas and cause severe reactions

Synthetic Dyes

Chemical pigments that can leach onto skin, especially when wet

Flame Retardants

Applied to meet safety standards but can trigger MCS symptoms

Optical Brighteners

UV-reactive chemicals that make fabrics appear whiter

Fabric Softener Residue

Persistent fragrance chemicals that remain after washing

Sizing Chemicals

Industrial processing chemicals used to shape and finish fabrics

Synthetic Fibers

Polyester, nylon, and acrylic release microplastics and chemicals

Rubber & Latex

Elastic components often contain chemical accelerators and allergens

Self-Check Quiz

Check any statements that match your experience. This is for educational use only and not medical advice.

Do you experience headaches, brain fog, or fatigue when wearing new clothes?

Do you get skin reactions (rashes, itching, burning) from most fabrics?

Are you sensitive to laundry detergent fragrances and fabric softeners?

Do synthetic fabrics (polyester, nylon) make you feel unwell?

Have you noticed reactions to "wrinkle-free" or "permanent press" clothing?

Do you need to air out or wash new clothes multiple times before wearing?|

Have doctors ruled out other conditions but symptoms persist with chemical exposure?

Pattern Indicator Assessment

Select responses

Check any statements that apply to see a pattern-based assessment.

Shop recommended for Multiple Chemical Sensitivity (MCS) Browse all products

Care Tips

Small routine changes can reduce exposure to irritants and residues.

Air Out Before First Wear

Hang new items outside or in a clean, well-ventilated room for 24-48 hours to release any minimal packaging odors

Wash with Safe Detergent

Use fragrance-free options like plain baking soda, unscented castile soap, Seventh Generation Free & Clear, or Branch Basics.|

Extra Rinse Cycle

un an additional rinse cycle to ensure all detergent residue is removed

Avoid Fabric Softener

Never use fabric softener, dryer sheets, or scented products - these leave chemical residues that defeat the purpose of chemical-free clothing

Line Dry When Possible

If weather permits, line drying outdoors helps maintain fabric purity and avoids dryer sheet contamination from shared machines

Store in Clean Environment

Keep your Cottonique items separate from chemically-treated clothing to prevent cross-contamination.

Real Customer Reviews

From people managing the same condition

★★★★★

“After 10 years with MCS, I've learned that 'organic' doesn't always mean safe. Cottonique understands chemical sensitivity. Their products arrive without that chemical smell that most new clothes have”

Verified Buyer · Multiple Chemical Sensitivity (10 years)

80% improvement

★★★★★

“I have multi-chemical sensitivities and have tried dozens of 'organic' brands. Cottonique is the only one that doesn't make me sick. Their processing is truly chemical-free, not just organic cotton with chemical finishes”

Verified Buyer · Multiple Chemical Sensitivity

80% improvement

★★★★★

“I chose Cottonique because of multi-chemical sensitivities. The improvement in my condition has been remarkable - 50% better since switching all my undergarments.|MCS and allergy to many chemicals here. I can actually wear these without brain fog, headaches, or skin reactions. Stock up - you won't find better.”

Verified Buyer · Multiple Chemical Sensitivity + Chemical Allergies

80% improvement