The original, what makes it special, the shelf parts we use and how to get closer. Add or swap parts and the score updates.
The original · SkinBetter Science
~$170 Price not confirmed · 1 fl oz (30 ml); also 1.7 fl oz (50 ml)
The original Alto formula: a multi-antioxidant serum (vitamin C ester, ergothioneine, CoQ10, SOD and a range of plant polyphenols) with ceramides and hyaluronic acid.
Prices and listings checked Oct 28, 2026. Amazon prices change; the link shows today's price.
Step 2 · The build
Vitamin C+E+Ferulic + Niacinamide (redness/tone)
Timeless Skin Care
AM antioxidant
The Ordinary
Niacinamide for redness and tone
CeraVe
Adds: Ceramides NP/AP/EOP with cholesterol and phytosphingosine
Paula's Choice
Adds: Ergothioneine, CoQ10, SOD and carnosine antioxidant complex; Plant polyphenol blend (green tea, grape seed, cocoa, turmeric, olive, acai)
Listing not re-checked. Check the title and size on the retailer page.
Partial credit means the part only partly matches that standout.
The 100 points
We split Alto Defense Serum into 5 standout parts. Each bar shows what the build earns.
A vitamin C form that helps even out tone and neutralise daily oxidative stress.
The signature multi-antioxidant blend that is the point of the Alto line.
No close retail equivalent: we credit at most 40% of these points.
A long tail of botanical antioxidants that adds to the main antioxidants and calms redness.
Barrier lipids that keep skin comfortable while the antioxidants work.
Water-binding base that keeps the serum light and non-drying.
Optional
73 / 100. We have not found a shelf product that closes more of the gap yet.
80 is our ceiling. No budget retail serum lists ergothioneine plus SOD plus CoQ10 together; vitamin E, ferulic acid or a single antioxidant gives only partial credit. Retail serums carry one or two of these extracts, rarely the whole set.
Step 3 · Buy
One link per part. Each opens the retailer in a new tab.
Your build
Running total $27.95
Buy on Amazon (opens in new tab)Running total ~$33.95
Buy on Amazon (opens in new tab)Running total ~$49.94
Buy on Amazon (opens in new tab)Running total ~$49.94 + check price
Buy on Amazon (opens in new tab)Listing not re-checked. Check the title and size on the retailer page.
The total leaves out the 1 part showing "Check price".
One bottle instead of a build. Sorted by match score; scores use the same standouts as above.
Vanicream
No close match yet — we show the nearest formulas.
Why it is close. Same THD ascorbate at a stated 5%, glycerin-heavy base, ceramide NP/EOP/AP plus carnosine; lacks polyphenols, ergothioneine and hyaluronate.
CeraVe
Why it is close. Alto Defense is essentially an antioxidant serum built on ceramides, and CeraVe's vitamin C serum uses the same ceramide trio plus cholesterol and phytosphingosine. It adds a proven vitamin C dose. It does not have the long tail of botanical antioxidants.
Cheaper in store: Vitamin C Serum. In store at Trader Joe's, $9.99 (price as of Oct 28, 2026), no link, we don't earn from this. 1 fl oz. $9.99/fl oz vs $28.99/fl oz, about 66% less per fl oz. A different product, a close match, not identical. Concentration not stated. The ingredient list comes from a third party, so check the label in store: ingredient source (opens in new tab).
Timeless Skin Care
Why it is close. The vitamin C + E + ferulic combination is the best-studied topical antioxidant system. It is stronger and more acidic than Alto, so it fits resilient skin more than reactive skin.
Paula's Choice
Why it is close. Same core antioxidant trio in a mixable booster. Pricier than the other dupes with no extra antioxidant range.
Cheaper in store: Vitamin C Serum. In store at Trader Joe's, $9.99 (price as of Oct 28, 2026), no link, we don't earn from this. 1 fl oz. ~$9.99/fl oz vs ~$104.48/fl oz, about 90% less per fl oz. A different product, a close match, not identical. Concentration not stated. The ingredient list comes from a third party, so check the label in store: ingredient source (opens in new tab).
Timeless Skin Care
AM antioxidant
Running total
Buy on Amazon (opens in new tab)No gain nowTimeless Skin Care
The Ordinary
Niacinamide for redness and tone
Running total
Buy on Amazon (opens in new tab)No gain nowThe Ordinary
CeraVe
Adds: Ceramides NP/AP/EOP with cholesterol and phytosphingosine
Running total
Buy on Amazon (opens in new tab)No gain nowCeraVe
Paula's Choice
Adds: Ergothioneine, CoQ10, SOD and carnosine antioxidant complex; Plant polyphenol blend (green tea, grape seed, cocoa, turmeric, olive, acai)
Listing not re-checked. Check the title and size on the retailer page.
Running total
Buy on Amazon (opens in new tab)Listing not re-checked. Check the title and size on the retailer page.
No gain nowPaula's Choice
CeraVe
Running total
Buy on Amazon (opens in new tab)Cheaper in store: Vitamin C Serum. In store at Trader Joe's, $9.99 (price as of Oct 28, 2026), no link, we don't earn from this. 1 fl oz. $9.99/fl oz vs $28.99/fl oz, about 66% less per fl oz. A different product, a close match, not identical. Concentration not stated. The ingredient list comes from a third party, so check the label in store: ingredient source (opens in new tab).
No gain nowCeraVe
Paula's Choice
Running total
Buy on Amazon (opens in new tab)Cheaper in store: Vitamin C Serum. In store at Trader Joe's, $9.99 (price as of Oct 28, 2026), no link, we don't earn from this. 1 fl oz. ~$9.99/fl oz vs ~$104.48/fl oz, about 90% less per fl oz. A different product, a close match, not identical. Concentration not stated. The ingredient list comes from a third party, so check the label in store: ingredient source (opens in new tab).
No gain nowPaula's Choice
Vanicream
Running total
Buy on Amazon (opens in new tab)No gain nowVanicream
Vitamin C + E + ferulic acid provides photoprotection to human skin in vivo (erythema, thymine dimers, p53).
Murray 2008 · J Am Acad DermatolA serum with 15% L-ascorbic acid, vitamin E and a matrix-repair tripeptide reduced roughness 8-9% and redness 9% in 56 days (open label).
Lintner 2020 · J Cosmet DermatolTopical vitamin C improved photoaged skin in a 6-month double-blind trial.
Humbert 2003 · Exp DermatolAqua/Water, Butylene Glycol, Propanediol, Ethylhexyl Olivate, Cetearyl Alcohol, Chlorogenic Acids, Hydrolyzed Sodium Hyaluronate, Lauryl Lactate, Dimethyl Isosorbide, Glycyrrhiza Glabra (Licorice) Root Extract, Tetrahexyldecyl Ascorbate, Ergothioneine, Benzylidene Dimethoxydimethylindanone, Arabidopsis Thaliana Extract, Carnosine, Camellia Sinensis Leaf Extract, Vitis Vinifera (Grape) Seed Extract, Theobroma Cacao Seed Extract, Curcuma Longa (Turmeric) Root Extract, Olea Europaea (Olive) Fruit Extract, Euterpe Oleracea Fruit Extract, Trifluoroacetyl Tripeptide-2, Buddleja Officinalis Flower Extract, Coffea Arabica Leaf Cell Extract, Crocus Sativus Leaf Cell Culture Extract, Superoxide Dismutase, Ubiquinone, Zingiber Officinale (Ginger) Root Extract, Ceramide NP, Ceramide AP, Ceramide Eop, Linoleic Acid, Linolenic Acid, Sea Whip Extract, Bisabolol, Tocopherol, Tocopheryl Acetate, Cholesterol, Phytosphingosine, Jojoba Esters, Sodium Pca, Pentylene Glycol, Methyl Gluceth-20, Glycerin, Helianthus Annuus (Sunflower) Seed Wax, Acacia Decurrens Flower Wax, Lecithin, Sodium Lauroyl Lactylate, Dicetyl Phosphate, Propanediol Dicaprylate/Caprate, Polyglycerin-3, Ceteth-20 Phosphate, Diisostearyl Malate, Xanthan Gum, Steareth-2, Acacia Senegal Gum, Carbomer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Dextran, Sodium Hydroxide, Citric Acid, Disodium EDTA, Ethylhexylglycerin, Phenoxyethanol
We split Alto Defense Serum into 5 standout parts worth 100 points in total. The build earns 73 of a possible 80. 80 is the most we claim, because some standouts have no close retail equivalent.
Vanicream Vitamin C Face Serum with Ceramides by Vanicream is our closest single-product match at 59 out of 100 for $17.99 (1.2 fl oz / 35 ml). It shares Tetrahexyldecyl ascorbate (5%), Ceramide NP, EOP, AP, NG, AS, Carnosine, Phytosterols.
Alto Defense Serum costs ~$170 for 1 fl oz (30 ml); also 1.7 fl oz (50 ml). The closest dupe costs $17.99, a saving of about $152.01. Prices change, so check the seller page.
No. Dupes share the key actives but can differ in concentration, vehicle and supporting ingredients. Missing from this one: Niacinamide, Hyaluronate, Ergothioneine, CoQ10, SOD, Plant polyphenols, Tocopherol. See our methodology for how we score.
SkinBetter Science · serum
~$52.98 + check priceour build, 4 partsOriginal ~$195, build ~$52.98 + check price.
CeraVe + The Ordinary + Vanicream + Paula's Choice
SkinBetter Science · serum
~$28.20 + check priceour build, 4 partsOriginal $225, build ~$28.20 + check price.
Good Molecules + The Ordinary + Byoma
Obagi · serum
$28.99our build, 1 partOriginal $115, build $28.99.
CeraVe