THE FORMULA
No ingredient in here is a token.
PAD 8%. Niacinamide 7%. Retinol 0.3% encapsulated. Every dose is the concentration peer-reviewed clinical trials proved works. Not hiding weak actives in proprietary blends. Read the data. Verify the dose. This is every ingredient, what it does, and exactly how much is in each bottle.
Dose comparison
Most serums use actives at label doses. Not therapeutic doses.
The difference between something that works and something that looks good on a label.
Clinical threshold = the concentration range used in the studies that produced measurable results. Below this range, most actives don't move a clinical needle.
All 8 actives
What each molecule does. Exactly.
Potassium Azeloyl Diglycinate
95% redness cleared in 6 weeks. Zero adverse events.
Extinguishes skin inflammation at the source, not by masking it. Regulates the sebum overproduction that testosterone drives. Rebuilds the lipid barrier after shaving daily destroys it. The reason Vector ONE doesn't cause a purge when you start retinol.
Read the clinical data →Niacinamide
88% pore reduction in 8 weeks. Three simultaneous mechanisms.
Vitamin B3. Minimises pores by reducing the excess sebum that stretches them. Strengthens the lipid barrier. Inhibits melanin transfer that causes uneven tone. Male skin produces 3× more sebum, which means niacinamide at 7% works harder here than in any women's formula.
Read the clinical data →3-O-Ethyl Ascorbic Acid
93% brightness improvement at 12 weeks. Stable in formulation.
Vitamin C that doesn't degrade in the bottle. Most Vitamin C serums are orange and ineffective by the time you open them. Oxidised L-Ascorbic Acid. This derivative is stable, penetrates deeper, and converts to active Vitamin C inside the dermis. Protects against oxidative damage from day one.
Read the clinical data →Acetyl Hexapeptide-8
+47% increase in collagen synthesis signalling. Expression line reduction.
Argireline. Inhibits the muscle micro-contractions that carve expression lines deeper over time. Works structurally on the actual cause, not cosmetically on the appearance. Testosterone-driven collagen loss accelerates in the 30s and 40s. This is designed for that phase.
Read the clinical data →Glycerin
+68% hydration within 2 hours. Restores what shaving strips daily.
Pharmaceutical-grade humectant. Draws moisture into the skin from multiple depths simultaneously. Hot water and shaving strip the lipid barrier every morning. Glycerin at 4% reverses this within hours, not days. The fastest-acting molecule in the formula. You'll feel the difference before the week is out.
Shop Vector ONE →Palmitoyl Tripeptide-1
Stimulates fibroblasts to increase collagen-I mRNA expression by 47%.
Matrikine peptide. Signals your skin's fibroblasts to produce new collagen, addressing the structural cause of aging, not just the appearance. Works over weeks, compounds over months. Pairs with PT-7 for synergistic effect neither delivers alone.
Read the clinical data →Palmitoyl Tetrapeptide-7
Reduces IL-6 and IL-8 cytokines by 30–40%. Quiets cellular inflammation.
The partner to PT-1. While PT-1 builds new collagen, PT-7 prevents inflammatory pathways from breaking it down. Two-peptide synergy: one builds, one protects. Works at the cellular level on the aging processes that accelerate fastest in men over 35.
Read the clinical data →Encapsulated Retinol
44% fewer wrinkles at 12 months (RCT, 154 subjects). No peeling phase.
The most clinically-proven anti-aging active available without a prescription. 0.3% encapsulated = gradual time-released activation. Your skin builds tolerance without the 2-week peeling phase that raw retinol causes. Comparable collagen growth to prescription tretinoin, without the pharmacy visit or the skin damage in week one.
Read the clinical data →Formulation science
Why these 8 together outperform any 3 separately.
Skincare fails when actives conflict. This formula was built so each ingredient makes the others work harder.
PAD is why retinol doesn't purge here
Retinol at 0.3% accelerates skin cell turnover and triggers an inflammatory cascade in the first weeks. Most men quit before it works. PAD at 8% suppresses that inflammatory response at the receptor level before retinol activates. Same pathway, intercepted earlier in the chain. In clinical testing PAD produced zero adverse events, comparable to placebo. This isn't a workaround. It's the reason 0.3% retinol is in this formula at all.
PT-1 builds. PT-7 stops the breakdown.
Net collagen has two sides: production and destruction. PT-1 stimulates fibroblasts to synthesise collagen-I, elastin, and hyaluronic acid: the structural materials. PT-7 reduces IL-6 secretion, the cytokine that activates matrix metalloproteinases, the enzymes that dismantle collagen faster than it can be made. Combined clinical data: 45% reduction in deep wrinkle volume after 2 months. Research confirms the combined effect is greater than either peptide used independently. You cannot address net collagen loss with only one of them.
Niacinamide + PAD: the male sebum stack
Niacinamide inhibits 5α-reductase, the enzyme converting testosterone into DHT, the molecule directly responsible for sebum overproduction. The correlation between oil output and pore size is measurably stronger in men (r=0.47) than women (r=0.38). PAD attacks the same problem from the inflammatory angle, reducing the redness and disruption excess sebum causes. Neither achieves what both do together. The 88% pore reduction and 95% redness reduction in clinical data reflect a dual-pathway assault on the same root cause.
Why PAD, not azelaic acid
Azelaic acid requires pH 3.5–4.5 to stay soluble and active. Retinol degrades rapidly below pH 5.0. Put both in the same formula and you have a contradiction: either azelaic acid is active, or retinol is intact. Not both. PAD is the potassium salt derivative of azelaic acid's active moiety: identical anti-inflammatory and sebum-regulating mechanism, fully stable at pH 5.5–6.5. The choice of PAD over azelaic acid wasn't a compromise. It was the only formulation decision that allowed 0.3% retinol to exist in this bottle undegraded.
Why standard Vitamin C would break this formula
L-Ascorbic Acid requires pH 2.5–3.5 to function. At this pH two things happen: it reacts with niacinamide to form a niacin adduct causing skin flushing, and its photodegradation rate doubles when niacinamide is present. You cannot have working L-Ascorbic Acid and working niacinamide in the same formula. 3-OEA is a stable ether derivative that needs no acidic environment. It penetrates at pH 5.5–6.5 and converts to active Vitamin C enzymatically inside the dermis. Full Vitamin C efficacy. Full niacinamide efficacy. No reaction between them.
AH8 + retinol: structural and neuromuscular
Expression lines form two ways: the dermis thins (collagen loss), and repeated muscle contractions groove the same lines deeper mechanically. Retinol addresses the first: it upregulates collagen-I synthesis and accelerates cell turnover to rebuild the structural foundation. AH8 addresses the second: it competitively inhibits SNAP-25, a SNARE complex protein, reducing the neurotransmitter release that drives facial muscle contraction. Clinical trial: 49% reduction in wrinkle depth after 4 weeks at 10% AH8. Two actives. Two completely separate mechanisms. One shared target.
What to expect
Results don't happen overnight. Here's when they do.
Hydration surge
Glycerin at 4% restores the barrier shaving has been stripping. You'll feel it before you see it. Tightness gone, skin no longer pulling after washing.
Redness and irritation reduce
PAD neutralises the inflammation cycle at source. Post-shave redness decreases. Sebum production normalises. The skin stops fighting what you're putting on it.
Tone starts evening
Niacinamide inhibits the melanin transfer that creates uneven patches. 3-OEA starts brightening. The grey morning look in the mirror begins to go.
Visible pore reduction
88% pore reduction is measured at week 8 in clinical trials. Texture improves as retinol accelerates cell turnover. This is when others start asking what you're doing differently.
Straight answers
Questions men actually ask before buying a serum.
No. This is the specific reason PAD at 8% is in the formula first. PAD pre-conditions the skin's inflammatory response before retinol activates, eliminating the acne-like breakout that retinol alone causes in week one. In clinical testing, PAD showed zero adverse events, comparable to placebo. The encapsulated retinol then releases gradually rather than flooding the skin at once. The combination is specifically engineered to deliver retinol's results without retinol's side effects.
Two differences that matter. First, dose: The Ordinary Niacinamide 10% is a single-active product. Paula's Choice Niacinamide + Retinol uses 0.1% retinol, three times less than Vector ONE's 0.3%. Second, formulation synergy: most multi-ingredient serums stack actives that compete. The Vector ONE formula was built around PAD enabling retinol, and the two-peptide system (PT-1 + PT-7) working together. You'd need 5 to 7 separate products from The Ordinary to replicate the active coverage, at higher total cost, with the risk of incompatible layering.
The formula was specifically built to avoid this. PAD at 8% is the most effective anti-inflammatory active available in cosmetics. It's the first thing your skin receives in each application. Clinical studies showed PAD produced zero adverse events compared to placebo. The retinol is encapsulated, meaning time-released rather than shock-delivered. Independent dermatologist testing confirmed the full formula is tolerable across all skin types including sensitised skin. If you experience any reaction within 90 days, full refund.
Honestly: week 4–6 is when most men notice visible change in their mirror. Redness and texture improve first (week 2), then tone and pore size (week 4–6), then wrinkle depth (month 3 onwards). The RCT measuring 44% wrinkle reduction ran for 12 months. That's the compounding effect of consistent retinol use. You can take photos at week 1 and week 8 and you will see a difference in texture and tone.
The maths
Eight clinical actives. Under €1 a day.
All eight. Full dose. One formula.
Under €1 a day. Results or a full refund within 90 days. No questions, no return required.
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