If you've spent any time in a dermatologist's office or a medi-spa, you've probably seen SkinMedica on the shelf. Backed by Allergan (the same company behind BOTOX), SkinMedica has built a reputation for medical-grade formulations with clinical-strength active ingredients. It's the kind of brand that skincare professionals recommend to their patients, and they’re generally considered the real deal.
Their HA5 Rejuvenating Hydrator is arguably the product that put multi-molecular hyaluronic acid (“HA”) on the map. Five proprietary forms of HA, the VITISENSCE technology, deep-sea bioactives, eight hours of continuous hydration. It built a cult following and became a benchmark for what a serious HA serum could do. At around $178 for 2oz, it wasn't cheap, but people paid it gladly. Then SkinMedica replaced it with the newer HA5 Hydra Collagen Hydrator, which added vegan collagen and doubled the HA content, promising 48 hours of hydration instead of 24. The price also went up to $192 for a slightly smaller 1.7oz bottle.
So when we saw the Reviv HA7X Multi-Molecular Hydrator Serum pop up in our match results, we were curious enough to pull up the ingredient lists for all three products and put them side by side. What we found was... a lot of overlap. Like, a crazy amount of overlap for a product that costs $79 for 2oz (60mL). Here's what the comparison looks like.
Key Takeaways
- The Reviv HA7X shares 29 of the same primary ingredients as the original SkinMedica HA5 Rejuvenating Hydrator.
- At $79 for 60mL versus $192 for 50mL (Hydra Collagen) or ~$178 for 56mL (original HA5), the HA7X costs a fraction of either SkinMedica product per milliliter.
- The Reviv HA7X was designed as a dupe-plus for the original HA5 Rejuvenating Hydrator, and it delivers on that intent. It also shares over 20 ingredients with the newer Hydra Collagen version, though it does not contain collagen.
- Reviv goes further in some areas by including seven forms of hyaluronic technology (versus SkinMedica's five), plus additional ingredients like Neurophroline, Tremella Fuciformis (snow mushroom), Beta-Glucan, and Tephrosia Purpurea Seed Extract.
The Hyaluronic Acid System: Seven vs. Five
SkinMedica built the HA5 brand around its proprietary blend of five forms of hyaluronic acid, each designed to work at a different level of the skin. The five types in the original HA5 Rejuvenating Hydrator include time-release HA, sodium hyaluronate for immediate hydration, uncrosslinked HA for smoothness, nano HA for soothing, and crosslinked HA for long-lasting hydration up to 8 hours.
Reviv's HA7X takes this concept and pushes it further with seven distinct hyaluronic technologies. Looking at the ingredient list, we can identify Sodium Hyaluronate Crosspolymer, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate, C12-13 Alkyl Glyceryl Hydrolyzed Hyaluronate (a patented lipid-bound HA), Dimethylsilanol Hyaluronate (a silanol variant), and a Polydimethylsiloxane/Polymethylsilsesquioxane Copolymer & Phospholipids & Hyaluronic Acid complex. That's a seriously comprehensive approach to multi-depth hydration.
Three of the core HA forms (Sodium Hyaluronate Crosspolymer, Hydrolyzed Hyaluronic Acid, and Sodium Hyaluronate) appear in both the HA7X and both versions of the SkinMedica HA5. The Reviv product then seems to go beyond by adding lipid-bound and silanol variants that don't appear in either SkinMedica formula.
The Shared Foundation: A Remarkable Overlap
When you line up the Reviv HA7X against the original HA5 Rejuvenating Hydrator, the ingredient overlap is striking. Both formulas are built on the same fundamental architecture:
The base and carrier system is nearly identical. Both use water as the primary solvent, with HDI/Trimethylol Hexyllactone Crosspolymer (a unique polymer for texture and hydration), Glycerin, and Butylene Glycol as key humectants and solvents.
The VITISENSCE-adjacent bioactives are where things get really telling. SkinMedica's proprietary VITISENSCE technology is built around Vitis Vinifera (Grape) Flower Cell Extract, marine bioactives from French Polynesia (Vibrio Alginolyticus Ferment Filtrate, Alteromonas Ferment Extract, Porphyridium Cruentum Extract), Whey Protein, and Plankton Extract. Every single one of these ingredients also appears in the Reviv HA7X.
The hydration support complex is shared too: Trehalose, Urea, Algin, and Pullulan all appear in both formulas. These ingredients work together to lock in moisture, create film-forming effects, and support skin barrier function.
The preservative and stabilizer system overlaps as well: Caprylyl Glycol, Pentylene Glycol, Disodium Phosphate, Potassium Phosphate, Glyceryl Polyacrylate, Hydroxyacetophenone, Propanediol, Phenoxyethanol, and Disodium EDTA all appear in both products.
That's 29 shared primary ingredients. At that level of overlap, the formulation intent appears to be unmistakable.
Where Reviv HA7X Goes Beyond the Original HA5
Beyond matching most of the HA5 Rejuvenating Hydrator's ingredient list, the HA7X includes several additional actives not found in either SkinMedica product: Tephrosia Purpurea Seed Extract (Neurophroline), an award-winning Givaudan active that may help reduce visible signs of stress on skin; Beta-Glucan, a soothing polysaccharide that supports the skin barrier; Tremella Fuciformis Sporocarp Extract (snow mushroom), sometimes called "nature's hyaluronic acid" for its comparable water-holding capacity in a smaller molecular size; Bisabolol, a chamomile-derived anti-inflammatory; Allantoin, a classic skin conditioner that promotes cell regeneration; Menthyl Lactate, which provides a subtle cooling sensation without menthol's irritation potential; and Polymethylsilsesquioxane (KOBO Microspheres), which creates a soft-focus optical blurring effect to visually diminish fine lines.
(Want to try it? We negotiated an exclusive 10% off for our readers with code SKOOLh10. But if you want to see the price breakdown and how it stacks up against the newer Hydra Collagen version, keep scrolling.)
How It Compares to the Newer HA5 Hydra Collagen
SkinMedica significantly reformulated the HA5 in 2024 as the Hydra Collagen Hydrator, doubling the HA content, adding vegan collagen, going silicone-free, and introducing ingredients like Polyglutamic Acid and Passiflora Edulis Seed Oil.
The Reviv HA7X was formulated as a dupe-plus for the older HA5 Rejuvenating Hydrator, not the newer version. It still shares over 20 ingredients with the Hydra Collagen formula, including the three core HA forms, Grape Flower Cell Extract, Glycerin, Trehalose, and Urea, but it lacks the headline addition of vegan collagen. The Hydra Collagen also moved to a plant-based butter and oil base, dropping silicones entirely, so the texture and feel are likely quite different.
If you loved the original HA5 and were disappointed when SkinMedica replaced it, the HA7X appears to be the closest continuation of that formula. If you specifically want the collagen and reformulated base of the newer version, the HA7X isn't trying to be that product.
The Price: Let's Do the Math
SkinMedica's HA5 Hydra Collagen Hydrator (the current version) retails for $192 for 1.7oz (50mL). That works out to roughly $3.84 per milliliter.
The original HA5 Rejuvenating Hydrator (2oz) retailed for around $178 for 2oz (56mL), or about $3.18 per milliliter. (It's becoming harder to find as SkinMedica phases it out.)
Reviv's HA7X Multi-Molecular Hydrator Serum comes in at $79 for 2oz (60mL). That's roughly $1.32 per mL.
In other words, the SkinMedica Hydra Collagen costs nearly three times as much per mL as the Reviv HA7X, for a product that shares the same three core HA forms, the same deep-sea bioactives, and the same foundational hydration complex. If you're someone who repurchases an HA serum every couple of months, that difference compounds fast.
We reached out to Reviv and asked if they could set up a discount for our readers. They agreed with an exclusive code, SKOOLh10, for 10% off the HA7X Multi-Molecular Hydrator Serum. That drops it to about $71 for 60mL. The code is only valid for a limited time, so worth jumping on if you're interested.
The Bottom Line
The story here is really a tale of two comparisons. Against the original HA5 Rejuvenating Hydrator, the Reviv HA7X appears to be a remarkably close match with 29 shared ingredients, plus additional actives like Neurophroline, snow mushroom extract, and beta-glucan that the SkinMedica version never had. If you were a fan of the original HA5, this is a no brainer replacement at a way better price.
Against the newer HA5 Hydra Collagen Hydrator, the overlap is still significant (20+ shared ingredients), but they're different products with different goals. The HA7X doesn't contain collagen and uses a different base system.
What you can say with confidence is that the Reviv HA7X appears to deliver an impressively comprehensive multi-molecular hyaluronic acid system (seven forms versus five), a full suite of the same deep-sea bioactives and botanical extracts that made the original HA5 famous, and several bonus actives on top of all that, for significantly less money.
Will it feel identical on your skin or deliver the exact same results? That's impossible for us to say. Concentrations, sourcing, and manufacturing processes all play a role that ingredient lists alone can't reveal. But based on what we can see, the Reviv HA7X appears to be a seriously compelling option for anyone who's priced out of the SkinMedica line and wondering whether they're paying a premium for the name more than the formula.
If you decide to try it, our readers can use code SKOOLh10 to take 10% off at checkout.
