Ingredient · Updated
Elastane (5%)
Found in 11 productsSee all
Paul Smith 3-Pack Organic Cotton Stretch Boxers 
Pact Cool Stretch Crew Undershirt White 
Tentree Organic Cotton Legging 
GREEN VOYAGE Organic Cotton Leggings 
Pact Racerback Sports Bra 
Pact Everyday Strappy Scoop Bralette Light Heather Grey 
Organic Cotton Bralette Dark Olive 
Danish Endurance Organic Cotton Bralette Black, Grey, Wine What is Elastane (5%)?
Elastane, commonly known as Spandex or Lycra, is a synthetic fiber known for its exceptional elasticity. It is produced through a complex chemical process involving the reaction of polyester with diisocyanate, resulting in a highly flexible and durable material.
In consumer products, elastane is used to provide stretchability and comfort, particularly in clothing and textile applications like workout gear and intimate apparel. While generally considered safe for wear, some individuals may experience skin irritation or allergic reactions.
When you see elastane on a label, it typically indicates that the product can stretch and provide a snug fit, enhancing comfort and performance. It's important to be aware if you have sensitive skin or known allergies.
Commonly found in: Workout Tops, Sports Bras, Feminine Care Products, Bras, Activewear
What to watch
- May cause skin irritation or allergic reactions in sensitive individuals.
- Manufacturing process involves synthetic chemicals.
Benefits
- Provides significant stretch and flexibility to fabrics.
- Enhances comfort and fit in apparel.
Elastane is not a food ingredient and thus not regulated by the FDA for consumption.
Some studies highlight concerns over chemical exposure in production, while others focus on its widespread utility and safety in textile use.
Elastane is a synthetic, non-animal-derived material and is generally accepted in vegan products.
Sources: Spandex: Characteristics and Uses
Scout's take
Processed additive flagged under Scout's ingredient doctrine.
More from Scout's analyses
Synthetic polyurethane stretch fiber. Confirmed plastic leaching.
from the analysis of Lululemon Metal Vent Tech Short-Sleeve ShirtAll 11 products with Elastane (5%)
Where Elastane (5%) shows up
- Underwear 2 products
- Leggings 2 products
- Sports Bras 2 products
- Bras 2 products
- T-Shirts 1 product
- Feminine Care 1 product
Higher-scoring picks without Elastane (5%)
Products from the same categories whose analyzed ingredient list does not include Elastane (5%), scoring 80 or above.
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