Fragrance-free · Five ingredients · Dermatologist-sampled
Five ingredients.
One vessel.
Forever.
The only skincare formula with a five-ingredient cap — dermatologist-sampled, fragrance-free, formulated for reactive and seborrheic-dermatitis-prone skin.
1,200+ on the waitlist from r/SebDerm · Launching soon
Most sensitive skin products react.
Ours can't.
Fragrance
Present in 73% of products marketed for sensitive skin. Includes parfum, linalool, limonene, geraniol — the most common triggers of contact dermatitis. Often listed as 'natural fragrance' or 'essential oil blend.'
Essential oils
Lavender, tea tree, rosemary, citrus: botanical-sounding ingredients that cross-react with fragrance allergens and can trigger Malassezia folliculitis. Present in most products labeled 'natural' or 'clean.'
Ingredient stacking
The average sensitive-skin moisturizer contains 28 ingredients. Each is a variable. Each is a potential trigger. More ingredients means more things to react to — and less information about which one caused the reaction.
Derrin's constraint: five ingredients or fewer, per product. No exceptions.
Three formulas.
Five ingredients each.
All products →
Barrier Cleanser
Barrier Moisturizer
Mineral SPF Serum
The vessel
The vessel is permanent.
The formula earns it.
The aluminum vessel on your bathroom shelf is yours forever — not a subscription you cancel, an object you keep. Every 60 days, your refill pouch arrives. You pour it in. The vessel stays.
Most skincare is disposable by design. Derrin isn't. The vessel is a permanent object — machined from a single aluminum run, built to outlast any trend. You keep it on your shelf because the formula earned it.
Ingredient transparency
Every ingredient named.
Every ingredient justified.
Every Derrin formula lists every ingredient — with one line explaining why each is present. Concentration, function, and source. Not a marketing claim. An ingredient decision you can audit.
Contract-manufactured by Nox Bellow Labs in New Jersey under pharmaceutical-grade stability testing. The five-ingredient constraint exists at the manufacturing level.
Read all three formulas →
The starter kit comes once.
Refills come every 60 days.
The vessel is the product. The subscription is the ritual.
- —3 aluminum vessels (cleanser, moisturizer, SPF serum)
- —3 first refill pouches (60-day supply each)
- —Vessels are yours forever
- —All 3 refill pouches every 60 days
- —Annual prepay: $490/year (15% off)
- —Pause or cancel before any shipment
- —Formula integrity is non-negotiable — five ingredients, every batch
From the r/SebDerm waitlist
"I've been dealing with seborrheic dermatitis for six years. Every cleanser I tried — including 'dermatologist recommended' ones — had fragrance or essential oils buried in the ingredient list. Derrin's cleanser is literally five ingredients. I can see exactly what I'm putting on my face. Two months in, no flare."K.M., r/SebDerm waitlist
"The moisturizer is the first one I've found that doesn't trigger my Malassezia. No esters from the forbidden list, no fatty acids that feed fungal overgrowth — just squalane and hyaluronate. My dermatologist was actually impressed when I read her the ingredient list."T.R., early access
"Chemical SPF gives me contact dermatitis. Every mineral SPF I've tried leaves a white cast so bad I stop using it. The Derrin serum is the first one that goes on without looking like sunblock paint — and it's only five ingredients, so I know exactly why it doesn't irritate."A.L., sensitive skin panel
These are representative voices from our pre-launch community. Derrin is available by waitlist — join below.
Join the waitlist.
1,200 people with reactive skin signed up after one Reddit post. We're building Derrin for them — and for you. Launch is coming.