Here’s why it’s known as the Hermès of collagen powders
Choosing a marine collagen is often more complex than it seems. Not all powders are created equal, not all sources are equivalent, and not all formulas have the same real impact on the skin, hair, and nails. Holi (Mane) by Agent Nateur is the collagen we recommend at Superskin — and the one we take ourselves every morning. Here’s why.
It all starts with a question nobody asks: where exactly does your collagen come from?
There’s one thing collagen brands prefer to keep quiet about: the vast majority of collagen powders sold on the market are agglomerated.
Agglomeration is an industrial process that transforms collagen peptides into round granules by passing them through a specific machine. To hold these granules together, manufacturers then bind them with gums, starches, and sometimes inflammatory oils. The result is a powder that dissolves instantly, but it dilutes the active collagen and introduces additives you have no reason to ingest.
Jena Covello, founder of Agent Nateur, explains it bluntly:
I can now tell just by touching my competitors’ collagen that they’ve often chosen a lower-quality, agglomerated version. The reason other lower-quality collagens mix so easily is because theirs are processed — unlike mine.
Jena Covello - Founder of Agent Nateur
Holi (Mane) collagen is not agglomerated. No additives, no binders, no fillers. It’s more difficult to formulate, but it’s the only way to achieve a truly pure collagen at the stated dose.
The source: wild-caught fish, not farmed
Holi (Mane) uses collagen extracted from the scales of wild North Atlantic cod, pollock, and haddock, certified non-GMO and kosher. Two concrete advantages:
- Fish scales do not store heavy metals. The risk of contamination is structurally eliminated, not simply monitored.
- Peptides derived from wild fish have a lower molecular weight, which accelerates their absorption into the bloodstream and improves their effective use by the body’s tissues.
Types I, II, III, and IV: why it changes everything
Most collagen supplements on the market contain only Type I collagen. Holi (Mane) contains four types.
- Type I: the most abundant in the body. It structures the skin, bones, tendons, and hair.
- Type II: forms joint cartilage. Clinical studies have shown that regular Type II supplementation significantly reduces joint pain and stiffness after six months.
- Type III: works synergistically with Type I to build skin, blood vessel walls, and the fibers of nearly all tissues. Essential in a comprehensive anti-aging approach.
- Type IV: forms the basement membrane of cells, acts as a scaffold structure, and plays a role in cell survival, mobility, and adhesion.
Having all four in one formula is not a marketing argument — it’s a formulation philosophy that reflects the reality of what the body actually needs.
Glycine: the amino acid everyone forgets to mention
Marine collagen is naturally rich in glycine, an essential amino acid whose benefits extend far beyond beauty.
Glycine supports muscle repair, cognitive function, metabolic health, and immunity. It contributes to the production of glutathione, one of the most powerful antioxidants synthesized by the body. It also acts as a neurotransmitter in the brain — similar to GABA in its inhibitory action — and supports sleep quality, stress management, and memory.
For skin and hair: glycine is one of the amino acids that make up collagen itself. Without it, endogenous collagen synthesis is compromised, regardless of how many collagen peptides are taken through supplementation.
This is one of the reasons why the results observed with Holi (Mane) go beyond aesthetic benefits alone: better sleep, reduced inflammation, improved digestion — effects our clients regularly report after two to three months of consistent use.
And then there’s the pearl powder
It’s the ingredient most people notice on the Holi (Mane) label and struggle to categorize. A superfood? A luxury ingredient? A legacy of traditional Chinese medicine? All three — and more.
Pearl powder has been used in Chinese medicine for over 2,000 years for the skin, bones, and cognitive function. What has changed over the past decade is that science has begun to document precisely why it works.
It stimulates endogenous collagen production
Nacre, the iridescent compound found in pearls, activates fibroblasts — the cells responsible for synthesizing collagen and elastin in the skin. A study published in Frontiers in Bioengineering and Biotechnology showed that the active fractions of pearl powder tripled the number of migrating fibroblasts compared to a control group. While the marine collagen in Holi (Mane) provides directly bioavailable peptides, pearl powder reactivates the body’s own ability to produce collagen.
It provides measurable, documented antioxidant activity
A randomized clinical trial published in the Journal of Food and Drug Analysis (Chiu et al., 2018) followed 20 middle-aged subjects over 8 weeks. The result: glutathione levels increased by 56% during the study period. Total antioxidant capacity improved significantly. Oxidative stress — one of the primary drivers of cellular aging — was measurably reduced.
It contains more than 30 trace minerals
Silica, magnesium, calcium, potassium. These minerals support hair, nail, and skin health at a cellular level that collagen alone cannot achieve.
It helps even out skin tone
Conchiolin, the protein compound responsible for pearls’ luminosity, inhibits tyrosinase activity — the enzyme involved in melanin production. Over time: reduced pigmentation spots and a natural radiance that builds progressively.
What this looks like in practice
Holi (Mane) is a neutral-tasting, odorless powder. 10g per day in coffee, matcha, a smoothie, or simply water. The effects build gradually over time:
- Within 3 to 4 weeks: less hair shedding in the brush and shower, stronger nails, skin that feels more hydrated and comfortable.
- At 2–3 months: improved hair density, visibly firmer skin, softened fine lines, brighter complexion.
Consistency is absolutely essential. Don’t skip a day.
Why we recommend it at Superskin
Our role at Superskin is to curate for you. To only stock products that truly work, to test them before talking about them, and to stay honest when something fails to deliver on its promises.
Holi (Mane) delivers. We take it ourselves every morning. Not because it’s our job to talk about it, but because we stopped having reasons to look for anything else.
It’s the benchmark against which we compare every other collagen. None has surpassed it yet.
Discover Agent Nateur Holi (Mane) collagen on Superskin
Scientific references
Chiu et al. (2018). Efficacy of protein rich pearl powder on antioxidant status in a randomized placebo-controlled trial. Journal of Food and Drug Analysis, 26(1). PubMed ID: 29389568
Frontiers in Bioengineering and Biotechnology (2021). Extraction, Purification, Bioactivities and Application of Matrix Proteins From Pearl Powder and Nacre Powder: A Review. PMC8095667