Isoi First
First marks the opening-step product across several isoi sub-lines: the Recovery First Essence Lotion (90ml), the Rose First Core Serum (30ml or 50ml), and the largest cluster, the Acne Doctor First line, with a Cleansing Gel (130ml), Control Tonic (130ml), Control Serum (40ml), Speedy Spot (14ml), and Speedy Mask. The Acne Doctor First listings also appear under two other spellings, Akni Dr. and Acny Dr., same formulas. We carry 27 items across these First products in stock.
By Skinsli editorial Updated
Buying guide
isoi First: the opening-step products across sub-lines
First shows up as the opening-step product name across a few separate isoi sub-lines rather than one single collection. Here's how the Recovery, Rose, and Acne Doctor First products split up.
Recovery First Essence Lotion
The Recovery First Essence Lotion (90ml) is the opening step in isoi's Recovery line, a lightweight lotion-essence hybrid meant to go on before heavier creams or serums.
Rose First Core Serum, two sizes
The Rose First Core Serum comes in 30ml and 50ml. Pick the 30ml to try the formula or travel with it, and the 50ml for regular daily use.
Acne Doctor First Cleansing Gel
The 130ml Cleansing Gel is the first step in the Acne Doctor routine, formulated for acne-prone skin rather than a general-purpose face wash.
Acne Doctor First Control Tonic
The Control Tonic (130ml) follows the cleansing gel, a toner-style step aimed at controlling acne-prone skin rather than plain hydration.
Acne Doctor First Control Serum
At 40ml, the Control Serum is the treatment step of the routine, applied after the tonic for more concentrated acne-focused care.
Acne Doctor First Speedy Spot and Speedy Mask
The Speedy Spot (14ml) is a targeted spot treatment, while the Speedy Mask is a broader treatment step; both sit outside the core cleansing gel, tonic, and serum trio for flare-up moments rather than daily use.
Why some listings say "Akni Dr." or "Acny Dr."
The Acne Doctor First products appear under a couple of alternate spellings, Akni Dr. and Acny Dr., across different catalog uploads. These are the same formulas as the Acne Doctor First line, not separate products.
Choosing among the First lines
If your skin is acne-prone, start with the Acne Doctor First cleansing gel and tonic. For general hydration, the Recovery First Essence Lotion is the simpler pick, and Rose First Core Serum works as a lighter daily serum layer for either routine.
FAQ
Frequently asked questions
FAQ
Frequently asked questions
What does "First" mean in these isoi product names?
First marks the opening step in a routine across a few separate isoi sub-lines: Recovery First (essence lotion), Rose First (core serum), and Acne Doctor First (cleansing gel, tonic, serum, spot, and mask).
What's the difference between the 30ml and 50ml Rose First Core Serum?
Same formula, two sizes. The 30ml is a trial or travel size, and the 50ml is sized for regular daily use.
What's included in the Acne Doctor First routine?
A Cleansing Gel (130ml), Control Tonic (130ml), and Control Serum (40ml) form the core steps, with a Speedy Spot (14ml) and Speedy Mask for targeted flare-up care.
Why do some Acne Doctor listings say "Akni Dr." or "Acny Dr."?
These are alternate spellings from different catalog uploads for the same Acne Doctor First line, not separate products or formulas.
What is the Recovery First Essence Lotion used for?
It's a 90ml lightweight essence-lotion hybrid meant as the opening hydration step before heavier creams or serums in isoi's Recovery line.

















