[This review was collected as part of a promotion.] We got this free sample and took it according to directions but it did not work for a full 24 hrs. I will say 12 hours and it was awesome then!

[This review was collected as part of a promotion.] I’m pretty happy with this, my allergies were non existent after taking it and it did not make me drowsy.

[This review was collected as part of a promotion.] I received this as a sample and it works well. It did not make me drowsy and relieved my symptoms for most of the day.

[This review was collected as part of a promotion.] This product is great. Relived my allergies and I slept peacefully throughout the night. Helped relieve my seasonal allergies and just one dose was good enough for me.

[This review was collected as part of a promotion.] I am so happy I received a sample of this to try because it works so great! Helps my allergies, doesn’t make me sleepy so I can have it on board all day. Highly recommend!

[This review was collected as part of a promotion.] I got this as a sample. I took it for 5 days and it really didn't make a difference. I will not be purchasing.

[This review was collected as part of a promotion.] The free samples lead me to purchase more Zyzal! It helped my allergy symptoms, but not completely.

[This review was collected as part of a promotion.] I have really bad year round allergies. I took Zyzal at night, and noticed I didn't have the drainage that I usually have.

[This review was collected as part of a promotion.] I like it because it works perfect on me and I would recommend this product to anyone that's hasn't tried it before because it works

[This review was collected as part of a promotion.] For my husband this has been the best relief. I received a sample I highly recommend Xyzal if you suffer from allergies