The Science

Skin doesn't just age.
It runs out of collagen.

DY1 works one layer beneath your skincare, rebuilding the structure your body stops making at 25. No surface tricks. Here's exactly what's happening, and why three actives are enough to change it.

The problem

At 25, your skin starts running a deficit.

Collagen is the scaffold that keeps skin firm, smooth and bouncy. It makes up roughly three-quarters of your skin's dry weight. Until your mid-twenties your body produces it in abundance. Then production slows, and from around age 25 you lose close to 1% of your remaining collagen every year.

Hyaluronic acid, the molecule that keeps skin hydrated and plump, declines right alongside it. You don't see it at first. Then fine lines settle in, skin feels less firm, and the bounce fades. It isn't damage. It's a supply problem, and a supply problem can be topped back up.

~25

the age collagen production tips into decline

1%/yr

collagen lost every year after that

~75%

of your skin's dry weight is collagen

Collagen vs. age

Estimated dermal collagen as a share of your mid-twenties peak.

100% 80% 60% 40% DECLINE BEGINS 20 25 30 40 50 Age 60

Illustrative trend based on published research into age-related dermal collagen loss. Individual rates vary.

The formula

Three actives. One repair job.

Every scoop is dosed to the levels used in published research, not fairy-dusted to look good on a label.

10G

Multi-Collagen

The raw material

Hydrolysed collagen peptides from multiple sources, broken down small enough to actually absorb. Once in your bloodstream they do two jobs at once: they deliver the amino acids skin is built from (glycine, proline, hydroxyproline), and they act as a signal, telling your fibroblast cells to ramp collagen production back up.

Type I & III peptides: the collagen your skin is built from.
200MG

Hyaluronic Acid

The water magnet

A single gram of hyaluronic acid can bind up to several litres of water. Inside the skin it locks moisture into the dermis, plumping the structure from within, so fine lines look softer and the surface reads dewy rather than dry. Collagen rebuilds the scaffold; HA fills it with water.

Holds the water exactly where the new collagen needs it.
80MG

Vitamin C

The catalyst

Collagen physically cannot be built without vitamin C. It's the essential cofactor for the enzymes that lock collagen's triple-helix structure into shape. Skip it and the raw materials never become finished collagen. It also shields freshly built collagen from free-radical damage.

No vitamin C, no collagen synthesis. It's that simple.
The mechanism

From scoop to skin, in four steps.

What actually happens between your morning ritual and visible change.

STEP 01

Absorb

Hydrolysed collagen is already broken into peptides small enough to cross the gut wall and enter your bloodstream within hours.

STEP 02

Signal

Those peptides reach the dermis and trigger your fibroblasts, the cells that build collagen, to switch production back up.

STEP 03

Build

With vitamin C as the cofactor, your body assembles fresh collagen and elastin into the skin's support structure.

STEP 04

Hold

Hyaluronic acid draws water into the rebuilt matrix, so skin looks plump, firm and lit from within.

The result: firmer, dewier, more resilient skin, rebuilt from the inside out.

The evidence

Change you can track on a calendar.

Clinical studies on collagen peptides report a consistent pattern across a daily-use period.

Week 2

Hydration

Skin holds measurably more moisture. The first thing most people notice: a dewier, less-tight feel.

Week 4

Smoothness

Surface texture refines. Fine lines start to look softer as the dermis rehydrates and rebuilds.

Week 8

Firmness

This is where most trials measure firmness and elasticity gains. Visibly tighter skin around the cheeks and jaw.

Week 12+

Density

Collagen density compounds. Results hold and deepen for as long as the daily ritual continues.

Dose matters

Most collagen is dosed to look good on a label.

Research on skin shows results at collagen doses of roughly 2.5g to 10g a day. Plenty of products print collagen on the front of the tub and deliver a fraction of that: a “proprietary blend” that's mostly cheaper filler.

DY1 is dosed at the top of the studied range: a full 10g of collagen in every scoop, with vitamin C and hyaluronic acid at functional levels too. No blend to hide behind, no rounding down.

Many “beauty” blends often under 2.5g
Clinically studied range 2.5 to 10g
DY1, every scoop 10g
Top of the studied range
Straight answers

Science questions, answered.

Doesn't digestion just destroy collagen before it can do anything?

It breaks it down, and that's the point. Collagen is hydrolysed into peptides and amino acids precisely so it can be absorbed. Some of those peptides survive intact and act as signalling molecules once they reach the skin. You're not eating collagen to “become” collagen; you're delivering the building blocks and the trigger that tells your body to make its own.

Can't I just use a collagen face cream instead?

Collagen molecules are far too large to pass through the skin barrier from a cream. They sit on the surface and wash off. To reach the dermis, where collagen is actually built, it has to come from within. That's the whole reason DY1 is taken, not applied.

Why combine all three actives instead of taking them separately?

Because they're interdependent. Collagen peptides are the raw material, vitamin C is the cofactor that turns them into finished collagen, and hyaluronic acid holds the water that makes the result visible. Any one without the others is a job half done. Dosing them together is what makes the system work.

Marine or bovine collagen: does the source matter?

What matters for skin is collagen type, not the animal it came from. Skin is built mainly from Type I and Type III collagen. DY1 uses multi-source peptides selected to deliver exactly those types, hydrolysed for high absorption.

How long until I actually see something?

Hydration changes are often noticeable within the first couple of weeks. Firmness and elasticity are slower. Most clinical studies measure those gains around the eight-week mark. Collagen is a rebuild, not a filter, so consistency is everything. Daily use is what compounds the result.

Is it safe to take every day?

Collagen peptides, hyaluronic acid and vitamin C are all well tolerated for daily use at these doses. DY1 is designed to be a daily ritual. As with any supplement, if you're pregnant, nursing or managing a medical condition, check with your doctor first.

Your skin is ready to rebuild.

Give it the raw material, the catalyst and the water it stopped making at 25. One scoop a day.

Start your glow

Rated 4.9/5 from 400+ skin transformations

DY1 is a dietary supplement and is not intended to diagnose, treat, cure or prevent any disease. Individual results vary. The mechanisms and time-frames described above reflect the general findings of independent research on collagen peptides, hyaluronic acid and vitamin C, and are typical ranges rather than guarantees. If you are pregnant, nursing or managing a medical condition, consult a healthcare professional before use.