Kirkland signature ultra clean laundry detergent reviews

Who doesn't love Costco? Shopping at the store is an experience in and of itself. Far beyond samples, the warehouse store offers highly affordable deals and bulk products that last for ages. But even the best of companies is bound to have a fail at some point, and for Costco that would have to be their Ultra Clean Free & Clear Premium Laundry Detergent.

As Business Insider shares, the free and clear detergent rates a 2.8 out of 5 on Consumer Reports. The lower rating has little to do with the cleaning power and performance of the detergent, but rather it appears to be based on claims that the soap has been known to cause contact dermatitis in some users. This is a particular concern considering free and clear detergents (this one included) are typically marketed for people with sensitive skin. Kirkland's product even claims to be hypoallergenic on the bottle. 

Unsatisfied customers claim the skin issue is attributed to changing ingredients in the detergent, with one Redditor saying, "It seems the rash issue is down to Costco constantly changing their formula. Which begs the question: why don't they list the ingredients? I can't find them anywhere."

Costco's Kirkland Ultra laundry detergent users commonly report dermatitis

Kirkland signature ultra clean laundry detergent reviews

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While the ingredients may be hard to find on the bottle, the current formula is listed on Costco's website. Nevertheless, customers are concerned; contact dermatitis is no small issue. The Mayo Clinic describes symptoms as typically including an itchy rash occurring within minutes or hours of exposure that can last two to four weeks. In severe cases, this irritation may cause sleep loss, pain, or infection. 

There are some easy ways to help identify if you are being irritated by laundry detergent. Allergist Tania Elliot told Allure, "If the rash is present on one side of your face and you're a side sleeper, detergent could be the culprit." Changing ingredients in laundry detergent are a common cause of skin irritation, but Elliot reminds readers that an allergy can develop at any time, even without changes to the product. Additionally, the use of too much detergent can also cause a rash, especially in high-efficiency washing machines. 

It's tough to say whether Costco's detergent itself is the culprit of the complaints, but if you're one of the customers who has been unhappy, it can't hurt to try switching detergents. Always check with your doctor for concerning or lasting symptoms.

Product ingredients

Known Ingredients

Ingredient

Health, Environment,
and Disclosure Concerns

Score

Some Concern: skin irritation/allergies/damage, acute aquatic toxicity, respiratory effects, biodegradation; Disclosure Concern: non-specific ingredient

Moderate Concern: biodegradation

High Concern: acute aquatic toxicity; Some Concern: skin irritation/allergies/damage

High Concern: acute aquatic toxicity; Some Concern: skin irritation/allergies/damage, damage to DNA, general systemic/organ effects, developmental/endocrine/reproductive effects

Moderate Concern: biodegradation

Some Concern: skin irritation/allergies/damage

Some Concern: chronic aquatic toxicity, acute aquatic toxicity

Concerns from [ETHYLENE OXIDE]: Some Concern: cancer, developmental/endocrine/reproductive effects, damage to DNA, general systemic/organ effects, respiratory effects, nervous system effects, skin irritation/allergies/damage, damage to vision

Concerns from [1,4-DIOXANE]: Some Concern: cancer, digestive system effects, respiratory effects, skin irritation/allergies/damage

Some Concern: chronic aquatic toxicity, acute aquatic toxicity, developmental/endocrine/reproductive effects, skin irritation/allergies/damage, damage to vision

Moderate Concern: acute aquatic toxicity; Some Concern: chronic aquatic toxicity

Moderate Concern: acute aquatic toxicity; Some Concern: skin irritation/allergies/damage, developmental/endocrine/reproductive effects, biodegradation

Moderate Concern: chronic aquatic toxicity; Some Concern: acute aquatic toxicity

Concerns from [ETHYLENE OXIDE]: Some Concern: cancer, developmental/endocrine/reproductive effects, damage to DNA, general systemic/organ effects, respiratory effects, nervous system effects, skin irritation/allergies/damage, damage to vision

Concerns from [1,4-DIOXANE]: Some Concern: cancer, digestive system effects, respiratory effects, skin irritation/allergies/damage

Some Concern: chronic aquatic toxicity, acute aquatic toxicity

Some Concern: respiratory effects

Some Concern: developmental/endocrine/reproductive effects

Some Concern: respiratory effects, developmental/endocrine/reproductive effects, skin irritation/allergies/damage

Concerns from [ETHYLENE OXIDE]: Some Concern: cancer, developmental/endocrine/reproductive effects, damage to DNA, general systemic/organ effects, respiratory effects, nervous system effects, skin irritation/allergies/damage, damage to vision

Concerns from [1,4-DIOXANE]: Some Concern: cancer, digestive system effects, respiratory effects, skin irritation/allergies/damage

Some Concern: skin irritation/allergies/damage, developmental/endocrine/reproductive effects, damage to vision

Concerns from [FORMALDEHYDE]: Some Concern: cancer, general systemic/organ effects, skin irritation/allergies/damage, respiratory effects, acute aquatic toxicity

Some Concern: developmental/endocrine/reproductive effects

Some Concern: respiratory effects

Some Concern: damage to vision

Some Concern: damage to vision

Some Concern: respiratory effects, skin irritation/allergies/damage

Some Concern: skin irritation/allergies/damage

Animal Testing

Unknown:

Leading international certifiers PETA and Leaping Bunny have no information concerning this company’s use of animal testing.

Is Kirkland Ultra Clean a good detergent?

Best Value CR's take: Kirkland Signature Ultra Clean is about half the price of higher-scoring detergents from Persil and Tide. Kirkland cleans up nicely in our tests, earning an Excellent rating for removing stains from body oil, one of the chemicals in sweat (think sweaty workout clothes).

Is Kirkland Ultra Clean the same as Tide?

Buying Options Costco's house-brand detergent, Kirkland Signature Ultra Clean, cleaned almost as well overall as Tide Ultra Stain Release and Persil ProClean Stain Fighter in our stain testing, and it costs about half as much.

Which Kirkland detergent is best?

Once again, Costco serves up a winner, with its Kirkland Signature Ultra Clean laundry detergent taking the prize as the best value laundry detergent, according to Consumer Reports. Kirkland Signature Ultra Clean comes in one size and one size only, and that's a whopping 94-ounce container that's good for 146 loads.

What does Kirkland Ultra Clean smell like?

Kirkland offers limited fragrance options. Its Ultra Clean formula is available in Fresh Scent. The Ultra Clean Plant-Based formula has a lavender scent.