La Mer and SK-II built entire brands on one ingredient: a bioferment. The science is real. The $200-an-ounce price tag is mostly not.
Bioferments have been available to formulators for years. What runs the price up at the luxury counter is the weighted glass jar, the Sephora shelf space, and the retail margin chain between the manufacturer and your bathroom.
So we built the cream we wanted without any of that. A serious bioferment formula, unscented, in a recyclable tin, sold direct. Here is how it compares.
What bioferments actually are
Fermentation breaks down plant and marine ingredients into smaller molecules skin can absorb directly. The process also generates peptides that act as biological messengers, signaling skin to produce collagen, calm inflammation, and repair its barrier overnight.
La Mer's starts with giant sea kelp. SK-II's with yeast from sake breweries. Ours with wakame. Same idea, different seaweed.
What the premium brands charge
La Mer Rejuvenating Night Cream
$230 / oz at Sephora.
The good: Miracle Broth is a real, well-researched sea kelp ferment. The original luxury bioferment. Sensitive skin safe.
Worth knowing: No niacinamide. No vitamin C. Contains eucalyptus oil. A lot of that price is the weighted glass jar, the brand, and the retail shelf.
Genuine science, narrower formula than the price suggests.
SK-II
$150–$300+ per oz at Sephora and department stores.
The good: PITERA (yeast ferment) is real. Some products in their range include niacinamide. Strong on brightening.
Worth knowing: Contains added fragrance. Not for sensitive skin. Wide price range depending on product.
Solid ferment science. The price reflects a global luxury retail footprint.
Charlotte Tilbury Magic Night Cream
$145 for 1.6 oz (~$91 / oz) at Sephora, Ulta, Nordstrom, Target.
The good: Time-released retinol and stem cell extracts. Effective approach for its intended purpose.
Worth knowing: No bioferment. No niacinamide. No vitamin C. Contains fragrance. Not for sensitive skin.
When a skincare brand is at Target, the retail margin is in the price. Nothing wrong with that. Just worth knowing.
Ours
Silver Falls Bioferment Repair Cream. $48 / 1.7 oz.
Wakame seaweed bioferment. The same class of marine ferment La Mer made famous.
Niacinamide (B3). Evens tone, fades dark spots. One of the most clinically validated brightening actives in skincare.
Stable vitamin C (Sodium Ascorbyl Phosphate). Brightens without sun sensitivity.
Centella + panthenol. Calm inflammation, rebuild the barrier.
Six cold-pressed oils. Hemp seed, evening primrose, avocado, raspberry seed, jojoba, grape seed.
No fragrance. Sensitive skin safe. Recyclable tin. Hand-poured in Oregon.
How it fits your routine
This is a repair layer, not a replacement. It goes on last, at night, after your serum.
Your serum still treats. Your vitamin C still brightens in the morning. This adds a real marine-ferment repair layer on top of what you already use, and seals everything under it in. The rest of your routine works harder, not double.
Starting from scratch? It works fine on its own. The simplest routine is two steps: a vitamin C cream in the morning, this at night. Build from there whenever you want.
On the tin
Heavy glass costs more to make, more to ship, and more to dispose of. La Mer's jar has a weighted lid and a spatula. At $230 an ounce, the jar is part of the product.
A recyclable metal tin is lighter to ship and won't break. What we don't spend on glass and retail shelf space goes into the formula. That's how we put a bioferment, niacinamide, vitamin C, centella, and six cold-pressed oils into a 1.7 oz tin for $48.
Not as pretty. Comfortable with that.
How they compare
La Mer, SK-II, and Charlotte Tilbury combined for space. Prices verified May 2026 at Sephora.
Different ingredients, same science. Both use marine fermentation to release the peptides and repair compounds skin reads as repair signals. La Mer uses giant sea kelp. We use wakame. The formulas are not the same. The idea is.
We sell direct. No Sephora, no Ulta, no Amazon. The margin that would go to a retailer goes into the formula and the price.
Yes. No fragrance, no essential oils, no retinol. Centella and panthenol are specifically there for barrier repair and calming.
Nothing added. Faint natural scent from the cold-pressed oils and bioferment.
The luxury formula. Not the luxury markup.
Wakame bioferment. Niacinamide. Stable vitamin C. Centella. Six cold-pressed oils. 1.7 oz for $48. Hand-poured in Oregon.
Shop Bioferment Repair Cream →Hand-poured in Oregon. Recyclable tin. Carbon-neutral shipping. No Sephora markup.
