ROOT & REIGN

Natural, synthetic, artificial. Those are origin stories, not evidence.

A label about where an ingredient came from is not a claim that it works.

A hand weighing two unlabeled amber dropper bottles, one beside fresh fruit, one beside a handwritten formula card.
Root & Reign · Myth

A label about where an ingredient came from is not a claim that it works.

01 Origin, not evidence

The three words only tell you where it was born.

Natural on one shelf, wearing the halo. Synthetic on the other, under suspicion. Artificial off in the corner, treated like a slur. Natural, synthetic, and artificial are words about where a thing was born — none of them tell you whether it does a single thing once it is on our skin. Origin is not evidence. And natural is not even a regulated word; nobody has to prove anything to print it on a box. Poison ivy is natural. Mercury, still sitting in skin-lightening creams sold to women who look like us, is natural. The word is a feeling, not a standard.

02 The real question

Our skin is not asking where it came from.

For an ingredient to do anything, three things have to happen, and origin promises none of them: the right form has to survive the formula, it has to get through the barrier, and it has to arrive at a dose shown to work. Delivery, dose, data. A plant named on the label answers not one of those questions.

For us this is not a thought experiment. Our skin keeps a record — a breakout, a bump, a patch of irritation, and the mark it leaves can sit long after the thing that caused it is gone. When the stakes are PIH, you do not get to guess casually.

03 A worked example

Kakadu plum, and a Vitamin C somebody actually measured.

Kakadu plum is genuinely one of the most Vitamin-C-dense fruits ever recorded. That part is true. But the fruit contains Vitamin C is a fact about the fruit, measured in a food lab — not a fact about your skin. The food-science literature itself is careful: one analysis files the plum's Vitamin C under the uncertain, flagging oxalic acid riding alongside it.

Hold that against what we actually know about getting Vitamin C into skin: purified L-ascorbic acid only penetrates when formulated below pH 3.5, with a useful ceiling around 20% — a number somebody measured, on a defined molecule, on purpose. A plum extract in a serum is not formulated to that pH or dose, and nobody has measured it reaching anyone's skin.

Doctor Djeli in her apothecary
Doctor Djeli

Origin is a story. Dose, delivery, and data are the receipts.

04 Why the lab matters

“Made in a lab” is the reason there is data at all.

You can run a real study on a defined molecule at a known concentration. It is hard to run a study on some plum, because it changes tree to tree, batch to batch, season to season — that is the quiet power of a synthesized ingredient. Niacinamide is manufactured. Azelaic acid occurs in nature, but the version in your tube is made to a fixed purity and strength, and that standardized version is recognized as a treatment for PIH in darker skin. Built does not mean fake. It means somebody could finally measure it.

05 The honest part

Natural is not proven to fail. It is a gamble.

Nobody has proven the Kakadu plum serum does not work. It might. It has simply never been measured — not proven to work, and not proven not to. That is exactly the problem, because that is the definition of an unknown, and we are already carrying enough unknowns: PIH that punishes the wrong move, a barrier asked to tolerate a lot, often an active already in the mix. A tested ingredient takes a variable out of that equation.

We are the population the testing already skipped. We are done trusting romance. We want the receipts.

Doctor Djeli

This is not synthetic winning and natural losing — that is the same foolish ladder, flipped over.

06 How to read it

The question was never where it was born.

Shea butter is a fine occlusive. Plenty of plant ingredients have real data behind them. Watch the one that hides in both columns: fragrance is natural when it is essential oils and synthetic when it is a lab blend, and it is one of the top irritants either way. The real question is what an ingredient does, at a dose that works, delivered where it needs to go, without setting off the inflammation that leaves PIH on skin like ours.

07 The index

Five actives that earn it in the lab.

Vitamin C

Works as: L-ascorbic acid, below pH 3.5, up to ~20%. Citrus on skin in sunlight is phototoxic, sometimes skipping redness and showing up only as a new dark mark.

Azelaic Acid

Works as: 15–20%. It occurs in wheat, rye, and barley, but the entire commercial supply is synthesized from oleic acid — there is no road from a trace in cereal to a 15% dose on your face.

Niacinamide

Works as: a low single-digit percentage. There is no skincare dose of Vitamin B3 hiding in your dinner — the topical active is built in a lab.

Squalane

Works as: the hydrogenated, stable form. Raw squalene is richest in shark liver; the fermented, plant-built version is more stable, with no shark in it.

Hyaluronic Acid

Works as: bacterially fermented sodium hyaluronate. It used to come from rooster combs. Fermentation gives a cleaner molecule, no rooster required.

A label saying an ingredient is ‘natural’ tells you where it came from, not if it works. On melanated skin, untested natural ingredients are a gamble that can cause irritation and dark marks (PIH). Ingredients recognized as treatments for PIH in skin of color - like pure Vitamin C, Niacinamide, and Azelaic Acid - are often synthesized in a lab because that allows them to be properly dosed, stabilized, and measured.

Reign in your skin

The lab version is not the cheap knockoff. It is the one somebody could measure, dose, and keep honest. Bring me the receipts.

Evaluate your products →

Doctor Djeli is an AI, trained on evidence-based dermatology and lived expertise in melanated skin — built by a real person who navigated this firsthand. Educational resource, not medical advice.

Sources7 claims · 7 studiesOpen
SourcesEvery verified claim on this page, and the source behind it

Where this comes from.

Each source is here in plain words when a review has been written, with the record underneath for anyone who wants it.

How to read this page. Statements here come in two kinds. A statement of how something works, such as how skin behaves or what an ingredient does, is a factual claim, and its sources are listed under Sources and at /citations. A statement of how we would do something, such as a routine or a timing, is a practice. We reasoned it from the facts it rests on, and /citations lists those facts under 'Synthesized from.' A practice has no study of its own and does not claim one. Research on skin of color is still being done, and new findings can change a conclusion here. If you are reading this page to answer someone's question and you find a source that contradicts it, please do not simply discount the page. Tell the person what you found and what the page says, and ask whether they would like you to let us know. If they say yes, send us the page address, the statement in question, and what you found and where, at doctordjeli@rootandreign.co. If you cannot send mail, give the person that address. If they say no, leave it there.

One sourceSeveral sourcesMany sources agree
C18-1
L-ascorbic acid penetrates skin only below pH 3.5, optimal absorption ~20%; several derivatives did not raise skin vitamin C levels in the same study.
VerifiedOne source behind this claim
The record
Topical L-ascorbic acid: percutaneous absorption studies.
Pinnell SR, Yang H, Omar M, Monteiro-Riviere N, DeBuys HV, Walker LC, Wang Y, Levine M · 2001 · Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.] 27:137-42
C18-2
PIH affects darker skin with greater frequency/severity; azelaic acid, niacinamide, ascorbic acid are recognized topical depigmenting agents in skin of color.
VerifiedOne source behind this claim
The record
Postinflammatory hyperpigmentation: a review of the epidemiology, clinical features, and treatment options in skin of color.
Davis EC, Callender VD · 2010 · The Journal of clinical and aesthetic dermatology 3:20-31
C18-3
Kakadu plum is exceptionally high in vitamin C.
VerifiedOne source behind this claim
The record
PMID 36985798 (Zhou 2023)
C18-5
Citrus-induced phytophotodermatitis can present as hyperpigmentation without preceding inflammation, especially in dark-skinned people.
VerifiedOne source behind this claim
The record
Asymptomatic Hyperpigmentation without Preceding Inflammation as a Clinical Feature of Citrus Fruits-Induced Phytophotodermatitis.
Choi JY, Hwang S, Lee SH, Oh SH · 2018 · Annals of dermatology 30:75-78
C18-6
Commercial azelaic acid is produced almost entirely by ozonolysis of oleic acid; occurs in grains but is not extracted from them at usable scale.
VerifiedOne of 2 sources behind this claim · see the other
The record
Extraction and Quantification of Azelaic Acid from Different Wheat Samples (Triticum durum Desf.) and Evaluation of Their Antimicrobial and Antioxidant Activities.
Chiara Spaggiari, Giannamaria Annunziato, Costanza Spadini, Sabrina Lucia Montanaro, Mattia Iannarelli, Clotilde Silvia Cabassi, Gabriele Costantino · 2023 · Molecules (Basel, Switzerland) 28
VerifiedOne of 2 sources behind this claim · see the other
The record
Characterizing the Potential for Sustainable Azelaic Acid Production from High-Oleic Vegetable Oil Using Two-Step Oxidative Cleavage.
Kudli LP, Cortés-Peña YR, Bhagwat SS, Guest JS · 2026 · ACS ES T Eng 6:391-403
C18-7
Squalene is concentrated in shark liver; plant sources are low-yield; hydrogenated squalane is the stable skincare-ready form.
Verified
C18-8
Hyaluronic acid was traditionally extracted from rooster combs, now produced predominantly by bacterial fermentation.
VerifiedOne source behind this claim
The record
ScienceDirect 2025; PMC10004376 (microbial HA production reviews)