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 23 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 and KGF, etc. Growth factors are similar to things like hormones in that 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 $280.00+.
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.