ga('ec:addImpression', {
'id': "BP_10098964", // Product ID.
'name': "Collagen Q10 Moisturizing And Softening Hand Cream 80g", // Product name.
'category': "[Skin-Care, Hand & Body Lotion, For Women]", // Product category.
'brand': "COLLAGEN WS", // Product brand.
'variant': "", // Product variant.
'list': "Product Searching List", // Specify the place showing the product.
'position': 1 // Product position (number).
});
ga('send', 'pageview'); // When finish firing the impression data of the displayed products