Composition No. 1.
The retinol your dermatologist would write if dermatologists wrote formulas. Perfluorocarbon-stabilised. Retinoid-tolerant in 14 days. Engineered to be the last serum you ever try.
A controversy, in three acts.
Retinol works. Retinol also irritates, oxidises, and abandons the skin barrier. The problem is not the molecule. It is the way the molecule is delivered.
Delivery.
Most retinol oxidises on contact with air, light, and skin oils. By week six, the bottle is delivering less than half the dose printed on the label.
Tolerance.
Skin reacts before it adapts. Most customers quit within ten days of starting a retinoid. The transition window is the most common failure point.
Pairing.
Retinol on a depleted barrier compounds damage. The protocol matters as much as the molecule, and most rituals omit the support layer.
What Composition No. 1 actually does.
Composition No. 1 is the result of three discrete deliveries running on the same molecule. Each addresses a single failure point in conventional retinol.
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01
Perfluorocarbon stabilisation
An inert carrier that protects the retinoid molecule from air, light, and skin lipids. Active dose holds steady for the life of the bottle.
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02
Time-released delivery
Retinoid is released to the skin in metered intervals over eight hours, not in one initial surge. Reduces purge, irritation, and dryness.
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03
Barrier-paired matrix
Ceramides and squalane co-formulated into the carrier. The barrier is supported in the same step the active is delivered.
Clinically measured. 12 weeks. n=32.
Reported no irritation at week 2
Increase in collagen density at week 12
Reduction in hyperpigmentation visibility
Compatible with retinoid integration protocols
Corneometer CM 825. Cutometer MPA580. Independent clinical lab.
Three ways in.
From the introduction set to the full architecture, every entry point delivers the same molecule. The only variable is how much you want to begin with.
Two retinoids. Two entry points.
Both contain a stable retinoid. The choice is about how engineered you want the delivery to be.
| Definitive Retinol Serum | Composition No. 1 | |
|---|---|---|
| Format | Standard serum, 30ml. | Perfluorocarbon-stabilised serum, 30ml. |
| Delivery | Direct topical. | Time-released over 8 hours. |
| Barrier support | Ceramide adjacent. | Ceramide and squalane co-formulated in matrix. |
| Tolerance window | 2 to 4 weeks. | 7 to 14 days. |
| Suited for | Active-tolerant skin building a retinol baseline. | Customers ready for the full architecture. |
| Price | $322.00 | $1,150.00 |
| Shop Definitive | Shop Composition No. 1 |
Questions about retinol.
I have never used retinol. Is Composition No. 1 too strong to start with? +
How is this different from the Definitive Retinol Serum? +
When do I see results? +
Can I use it with my other actives? +
Is the Exploration Set a good way to start? +
The Composition
The last serum you will need to try.
Engineered to stabilise the molecule. Engineered to support the barrier. Engineered to last.
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