Are cost-effectiveness and pain relief the distinct advantages of Vitaran?

The sun has been so strong lately, and since I've been going out frequently on foot visiting stores to redecorate my home, I think my skin has really gotten irritated. My skin is already thin and sensitive, and with all the external irritation, it keeps breaking out and itching. So, I looked into some treatments to regain my skin's health. Many people recommend Rejuran to those with similar concerns. However, a friend told me that Vitaran is a more cost-effective version of Rejuran. They also said it's much less painful and reasonably priced than Rejuran, so I'm thinking of getting Vitaran instead.

However, even if it offers great value for money, I’m worried it might be a waste if the effectiveness is poor. So, for those who have seen definite results with Vitaran, I would appreciate your honest reviews on whether pain reduction and cost-effectiveness are the only real advantages of Vitaran :)