Leather itself is generally hypoallergenic, as it does not harbor dust mites or pet dander. However, the presence of allergens in a leather sofa cover can be influenced by various factors, including the type of leather, the tanning process, and any additional materials used in the manufacturing process. Here are some considerations related to potential allergens in leather sofa covers:

Type of Leather:

Full-grain and top-grain leathers are typically natural and have fewer chemical treatments during the tanning process, reducing the likelihood of allergens.Bonded leather may contain synthetic materials, and faux leather is entirely synthetic. 

These materials may have different properties.

Tanning Process:

The tanning process can impact the presence of allergens. Vegetable-tanned leather tends to be more natural and may have fewer chemical additives compared to chrome-tanned leather.Some individuals may be sensitive to the chemicals used in certain tanning processes.

Additional Materials:

Sofa covers may have additional materials such as foam padding, synthetic fabrics, or adhesives used in the upholstery process.

These materials can potentially introduce allergens, especially if they contain substances that may cause sensitivities in some individuals.

Dye and Finishes:

Dyes and finishes applied to leather can vary. Water-based dyes and natural finishes may be preferred by individuals with sensitivities to certain chemicals.Some finishes, while providing protection, may contain substances that could cause reactions in sensitive individuals.

Testing and Certification:

Some manufacturers may test their products for allergens and may have certifications indicating that the leather sofa cover meets certain standards for allergen content.Look for products that have been certified by relevant organizations for low allergen levels.

Ventilation and Off-Gassing:

Allowing the sofa cover to air out in a well-ventilated space for a period after purchase can help reduce any residual odors or off-gassing that might be associated with certain materials.

Cleaning Products:

The use of cleaning and conditioning products on the leather sofa cover should be considered. Some cleaning products may contain allergens, so individuals with sensitivities may want to choose products carefully.

It's important for individuals with allergies or sensitivities to be aware of the specific materials used in the leather sofa cover, inquire about the tanning process, and choose products that align with their needs. Testing a small, inconspicuous area of the sofa cover or checking for certifications related to allergens can also be helpful in ensuring a comfortable and allergy-friendly living environment.