Developed in our lab. Tested before it is named.

Vernix is the coating a newborn arrives in, and it is the most overdesigned moisturizer in biology: wax esters, sterols, squalene, ceramides and fatty acids in a mix that keeps water in and irritants out while skin finishes maturing. Our lab rebuilt that lipid logic as one complex, with cosmetic-grade materials standing in for each family, in the proportions newborn skin uses.

Baby's Bottom is built on it, then restocks the barrier's own three lipids in the ratio the published work uses for older skin. The complex was tested on people for water loss, hydration, itch and redness. The redness came down by a statistically significant margin.

Retinoids work by pushing skin to renew faster, and the redness that comes with it is why people quit. Schizophyllan is a beta-glucan our lab ferments from the split-gill mushroom, Schizophyllum commune: a long chain of glucose with a side branch every third sugar, which is the shape that makes it hold water and calm skin.

Our lab tested it on people in a four-way, double-placebo design against 0.2% retinol. Redness and irritation fell within a day and kept falling over five days. In the lab's assays it raised the activity of superoxide dismutase, the cell's own antioxidant enzyme, and inhibited lipid peroxidation, one of the ways a retinoid-stressed surface stays uncomfortable. It is in Coming of Age so the 0.1% retinal can do its job without the drama.

Copper tripeptide-1, GHK-Cu, is the naturally occurring copper complex that declines with age and resets a startling number of genes toward repair in laboratory models. Our lab makes it as a pair with Hexapeptide-11, a six-amino-acid peptide originally isolated from yeast, with one good paper on what it does inside skin cells: it switches on Nrf2, the cell's own stress-defense program, and the machinery that clears damaged proteins, and it improved skin elasticity in human subjects in the same paper.

The complex is built without chelators, because chelators strip the copper out of the peptide, which is the kind of detail that decides whether a copper serum is blue on the label or blue in the bottle. Both peptides sit in the interesting tier: the mechanism is published, the human data is growing, and the serum is blue for a reason.

Hyaluronic acid is only as useful as its size. On Raman imaging of human skin, pieces between 20 and 300 kilodaltons crossed the outer layer and the large ones did not; in a 60-day trial, the 50 and 130 kilodalton sizes reduced wrinkle depth where larger sizes only hydrated. Skin itself breaks hyaluronic acid into smaller fragments during repair. Our lab's fermentation does the same thing in a bioreactor with a Lactobacillus culture, and the result is a spectrum rather than one size: roughly 46 percent above 1,000 kilodaltons to film the surface, 19 percent between 100 and 1,000, 18 percent between 10 and 100, and 17 percent under 10, with a small fraction of peptides the culture made along the way.

The ferment was tested on ten people for skin hydration and water loss against the same hyaluronic acid before fermentation, and in cultured skin cells for what it does to the cells' own water channels, hyaluronic acid synthesis and antioxidant capacity. In stressed skin cells it also raised the longevity-associated enzymes SIRT-1 and SIRT-3, which we mention because the lab measured it, not because we think a serum is a life extension.

Niacinamide has the best human data of anything in Mixed Signals: tone, texture, spots, barrier. The flush some people get from it is not the vitamin. It is nicotinic acid, an impurity left over from manufacturing that dilates blood vessels, and grades differ by how much of it they carry.

Our lab's standard grade runs 100 parts per million. Mixed Signals uses the other one, at 20, so the flush is not part of the experience. It is a specification, not a study, and we list it because it is the kind of thing nobody tells you.