The offer of the second product at 50% is simple. For every two products that you add to the cart, 50% of the value of the cheapest of the two products WILL BE AUTOMATICALLY DISCOUNTED on the payment screen. 

In case you want to buy more than 2 products, the discount will be applied automatically. That is to say :

- For the purchase of 2 products, the product with the cheapest amount is 50%.

- For the purchase of 4 products, the 2 products with the least amount come out at 50%.

- For the purchase of 6 products, the 3 products with the least amount come out at 50%.

- For the purchase of 8 products, the 4 products with the least amount come out at 50%.

- For the purchase of 10 products, the 5 products with the least amount come out at 50%.

- For the purchase of 12 products, the 6 products with the least amount come out at 50%.