seems to work excellent packaging [SEP] this product is noticeably fading hyperpigmentation on the first acne blemish i have had in years thank goodness i had it around when i got the zit i battled acne for years so it is easy for me to see that the redness for this blemish is fading faster than any i have ever seen i apply a little dab every other night this also works well as a whole face vitamin c serum the packaging prevents oxygen from making contact with the product while it is still in the tube that plus the formulation means that the vitamin c remains stable you can use up this product at your leisure where with other vitamin c serums they go bad in a matter of weeks definitely worth the price you will probably want to use this one in the evening since it leaves my skin a little tacky