Why our Ultimate Serum bottle isn't dual-chamber like TNS Essential Serum

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.

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Head To Head Comparison: Ultimate Serum™ vs. SkinMedica® TNS Essential Serum®

Ultimate Serum "Compare To" product to TNS Essential Serum from SkinMedica | Larger, Cheaper, 23 same ingredients

Ultimate Serum
is the first direct competitor to award-winning TNS Essential Serum® (NEWBEAUTY™ Beauty Choice Award Winner and InStyle™ Beauty Award Winner) by SkinMedica® which is now owned by Allergan, Inc. The patent on the TNS product relates to the medium called NouriCel-MD®, a "proprietary blend" of growth factors. We at Reviv Serums outflank this patent by simply providing our growth factors in a different conditioned media. In addition to the growth factors, we also include 25 of the top primary ingredients in TNS Essential Serum, and leapfrog by adding two of cosmetic chemistry's latest ingredients: stem cells and hexapeptides.

Regarding the percentage of growth factors in each product: In actuality, the growth factors in both products are quantities measured in micrograms. TNS just lists "conditioned media" as the first ingredient, and does not break down the quantities of the actual factors like EGF, KGF, VEGF, IGF, TGF, etc. Growth factors are signaling molecules, therefore very little volume/quantity is required to be active and effective (they are measured in micrograms, one millionth of a gram). Like a spark plug, a little bit will go a very long way, and more that the recommended quantity is not "better." As for the other non growth factor primary ingredients, they're the same - plus we add the PhytoCellTec® Stem Cells and hexapeptides. Ultimate Serum is twice the size of TNS (2 oz vs. 1 oz) and yet is less than half TNS's hefty price of $320.00+.

While parabens have a great safety profile (despite the hype), and we are not adverse to using them properly (see more here), Ultimate Serum contains a safe Ecocert preservative — Optiphen Plus — instead of the parabens used in TNS Essential Serum.

Ultimate Serum is really 11 different products in one:

 

• A brightening product
• An antioxidant serum
• A firming and tightening product
• An anti-inflammatory
• A peptide serum
• A green tea complex product
• A vitamin C serum
• A sebum controller
• A collagen stimulator serum
• A growth factor serum
• A moisturizer and light emollient

 

It’s the ultimate rejuvenator in a single serum. Navigate to its product page here.

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