Carlson's Elite Fish Oil gems. 180 softgels. Certified by IFOS. Is way cheaper than Pristin. I am sure Pristin is Ethyl Ester and is not certified by IFOS. So Carlson is every way better than Pristin in terms of price, freshness, purity. Two downside:
a) It's Ethyl Ester
b) It's not found in malaysia.

If money is not an issue. I recommend Nordic's. Its certified by IFOS. It's triglyceride. They handle every process (from catching the fish, to extracting the oil). Two downside
a) Pricey
b) It's not found in malaysia

Yup.

Bro, it's not 1 month supply la. How do you count? There's 180 softgels. If you don't have any condition, you can just take 1 softgel/day = 180 days supply. Why one? The ratio of DHA and EPA is already high enough. Even if you take 2x/day, one bottle can last you for 90 days.

So you tell me whether is expensive or not and compare that to the one sold by local pharmacies.

The cheapest is if you got relatives staying in US, just ask them to buy back lots for you. Later you pay them. But other than that no.

According to malaysian customs it is illegal to bring in supplement. If want to bring in max also 1 month supply.

Just say for family lo. Don't know. I never have relatives bring such thing. Worse come to worse just kena tax only. Cannot avoid.

Kena letter from them before. I just take a few months break then just only started bringing in supplements. Will still buy online as there are some things cannot get in malaysia. Astaxanthin. 

Also cost price is cheaper than malaysia like fish oil Spirulina. If buy spirulina from Malaysia, I need to pay 100%-200% the online price to get the same spirulina from Cosway or from Elken. Cosway spirulina comes from the same manufacturer as NOW (Parry pharmaceuticals)

I just buy lesser and hope for the best.

Why should I pay more for inferior products or for the same  item?

Ya. For family members only. Its very cheap in Aust

Lower dosage, freshness and purity not cerified, pricier. Also less selection. Enough said.

400 softgel 1500mg promotion price less than Aud 20 dollars.

No. I not keen into online shopping. Went to collect a parcel at Poslaju not long ago. An uncle was checking with the staff why his parcel which is supplement still not arrive. The staff told him it was held by custom department and we are not allow to import those supplement from oversea.