SerumScoop: Tips, tricks and news
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There's a growing trend against jar packaging, especially related to skincare cosmetics. Should you avoid those products?
If you use your fingers to apply a product from a jar, there is a small chance of introducing contamination over time that might overwhelm the preservative system and introduce bacteria or mold. That's a slim chance, and mitigated by making sure you don't let the product sit on your shelf too long. Be sure to pay attention to any Use-By/Expiration date or P.A.O. (Period After Opening) warning on the package.
An open jar is also more exposed to oxygen, and can affect antioxidants and other active ingredients and potentially make them less potent. Again, this side effect can be mitigated by making sure you keep the jar sealed, and use the product in a reasonable timeframe once opened.
TNS Essential Serum® by SkinMedica® Allergan® has a very fancy pump bottle that contains two different chambers. You dispense both sides at the same time, and are instructed to mix the two together on the back of your hand.
One side of the pump has a pH of 5, and the other just less than that, at about 4.5.
We're inclined to think that the dual pump of TNS Essential Serum is essentially a marketing gimmick. What's the point of keeping two halves of the product separate, only to mix them together?
Growth factors and certain peptides are rendered less effective at a pH of less than 5. Presumably that is why the TNS product is packaged that way, although we of course can't be for sure (the manufacturer doesn't mention why). When you mix the two parts of the product together, of course you also blend the two pH levels, and would presumably also negatively affect any sensitive growth factors once mixed.
That's why our Ultimate Serum has a pH of about 5.8. It's a low enough pH to create a good acid balance on your skin, but not too low to adversely affect the sensitive growth factors and peptides in contains. All in one nice, but non-fussy, bottle. That's one reason why we can offer our Ultimate Serum at such a fair price. Ounce-for-ounce, it's about 1/4th the price of Skinmedica's TNS Essential Serum even though it contains the top 23 ingredients of that very effective, yet very pricey, product.
Note from our legal eagles: RevivSerums Ultimate Serum is neither endorsed, nor sponsored by, nor affiliated with Allergan Inc.