Isa Knox Skin
ISA KNOX covers the full skin-care spectrum with 135+ products across lines including Age Focus, Nox Lab, Raha Trusel, LXNEW, Terbina AD, and the Homme range. Whether the goal is collagen-boosted firmness with the Age Focus Vital Collagen Essential Skin, barrier repair via the Terbina AD Regenerating Skin Emulsion, or a fast aftershave refresher with the Homme Cool Touch Skin, the brand maintains a consistent standard for Korean cosmetic formulation without premium retail pricing.
By Skinsli editorial Updated
Buying guide
Buying Guide: ISA KNOX Skincare Collection
ISA KNOX is a Korean skincare brand under LG Household and Health Care, one of South Korea's largest cosmetics groups. The brand spans multiple sub-lines addressing different skin concerns - from the repair-focused Terbina AD range to the collagen-centric Age Focus line and the daily-use Nox Lab series. With 135+ products in stock, the collection covers toners, serums, emulsions, creams, cleansers, and targeted treatments for both men and women.
ISA KNOX as a Brand
ISA KNOX carries a mid-to-premium position in the Korean market. Its products are manufactured to Korean Cosmetics Act standards and use formulations that have been iterated over years of domestic market feedback. The brand is not a fast-moving trend label; most of its lines have multi-year histories and established followings among Korean consumers who prioritise consistent formulation over novelty.
On skinsli you will find the same Korean-market packaging and formulas rather than reformulated international variants. Text on packaging is primarily Korean with ingredient lists in international format.
Key Sub-Lines in This Collection
The ISA KNOX skin collection spans several distinct sub-lines. Terbina AD / Tervina AD is the barrier-repair range, covering the Regenerating Skin Emulsion, Softeners, and the Prima Elixir for stressed or reactive skin. Age Focus addresses anti-aging concerns with the Age Focus Vital Collagen Essential Skin 160ml and the Age Focus Prime Double Effect Ampoule Skin 160ml, both aimed at firmness and tone. Nox Lab offers a moisture-first approach, with the Nox Lab Moisture Skin as the core lightweight toner.
Raha Trusel provides advanced recovery formulas like the Raha Trusel Advanced Recovery Toner 150ml for post-treatment skin. LXNEW is represented by brightening and vitamin-focused products such as the LXNEW Vita Max Ampoule 30ml. The Homme range covers men's grooming with the Homme Cool Touch Aftershave/Skin and the Age Focus Homme Aftershave Skin 150ml.
Toners and Softeners: Choosing the Right First Step
ISA KNOX offers toner-format products under several names. The Platinum Moisture Skin Softener 100ml is a traditional Korean softener - thin, watery, and focused on priming the skin for subsequent steps. The Age Focus Vital Collagen Essential Skin 160ml adds collagen-boosting intent to the first liquid step. The Nox Lab Moisture Skin runs lighter still, making it the better pick for those who prefer a minimal-texture prep layer.
For skin in recovery, the Raha Trusel Advanced Recovery Toner 150ml is the standout - it bridges the toner and essence categories and is designed for use after procedures or during extended barrier-repair routines. Identify your primary concern first (moisture, firmness, or recovery) and use that to select your starting layer.
Serums and Ampoules for Targeted Treatment
The serum tier in this collection includes the Age Focus Prime Double Effect Ampoule Skin 160ml, which covers two functions in a single step - treatment and prep - making it efficient for a shorter routine. The LXNEW Vita Max Ampoule 30ml is a concentrated brightening ampoule suited to skin showing dullness or uneven tone. Ampoules in the Korean skincare system are typically applied after toner and before emulsion, using two to four drops or a half-pump per session.
The Terbina AD Prima Elixir covers the repair-focused treatment need within the AD sub-line. If you are using products from multiple sub-lines, it is generally better to choose one serum or ampoule per routine rather than stacking two or three at the same step.
The Homme Range: Men's Skincare from ISA KNOX
The ISA KNOX Homme lineup caters to men's skincare with formulations that work well on thicker-textured skin and address concerns like post-shave sensitivity and oil management. The Homme Cool Touch Aftershave/Skin comes in a portable format, making it practical for travel or gym bags. The Age Focus Homme Aftershave Skin 150ml incorporates the anti-aging intent of the Age Focus sub-line with an aftershave format.
Korean men's skincare has converged toward lighter, multi-step routines compared to Western norms. The Homme Aftershave Skins are designed to be applied like a toner after cleansing and shaving rather than as a traditional alcohol-heavy splash, so they sit comfortably in both minimal (cleanse + skin) and more complete (cleanse + skin + emulsion + sun care) routines.
Building a Routine from This Collection
A starter routine from the ISA KNOX skin collection requires only three picks: a softener or toner (choose one based on your concern), an emulsion or ampoule, and a finishing cream or mask. For anti-aging focus, combine the Age Focus Vital Collagen Essential Skin with the Age Focus Prime Double Effect Ampoule Skin. For barrier repair, pair the Terbina AD Softener with the Terbina AD Regenerating Skin Emulsion.
The Raha Trusel Advanced Recovery Toner is best used as a standalone first-step replacement when the skin is in an active recovery phase rather than layered on top of another toner. Adding the LXNEW Vita Max Ampoule to an existing routine requires no changes to the surrounding steps - it inserts after toner and before emulsion.
The Cover Supreme Range and Makeup-Hybrid Products
The Cover Supreme Rich Essence Skin Cover Fact 10g sits at the boundary between skincare and makeup. It is a cushion-compact-style product that provides coverage while delivering essence-level actives. At 10g it is a travel or top-up size rather than a primary compact. This product type is distinctly Korean in origin - sometimes called a skin cover or base cushion - and differs from a standard CC cream by incorporating more concentrated skincare ingredients in the formula.
For shoppers whose main interest is skincare rather than coverage, the Cover Supreme line is optional. For those who want their base layer to do double duty, the Rich Essence format is a practical option to evaluate alongside the rest of the ISA KNOX range.
Price, Sourcing, and What to Expect
ISA KNOX products on skinsli are sourced from Korean distributors and priced for the US market. Korean-market pricing for ISA KNOX is typically more accessible than Western prestige skincare at comparable positions, which means the brand offers substantive formulations at a mid-range price point in a US context.
Formulations are in Korean-market format. Some products list ingredients in both Korean and English; others use Korean-only ingredient lists that are supplemented by the international INCI name format visible on the product page. If you have known allergens, check the INCI list before purchase. skinsli lists the full ingredient data available from the Korean source for each product.
FAQ
Frequently asked questions
FAQ
Frequently asked questions
How many sub-lines does the ISA KNOX skin collection include?
The ISA KNOX skin collection on skinsli covers several distinct sub-lines: Terbina AD (barrier repair), Age Focus (anti-aging and firmness), Nox Lab (moisture-first), Raha Trusel (recovery), LXNEW (brightening), Cover Supreme (coverage hybrids), and the Homme range for men's grooming. The collection lists 135+ products total across these lines.
Who manufactures ISA KNOX products?
ISA KNOX is a brand owned and manufactured by LG Household and Health Care (LG H&H), one of South Korea's largest consumer goods companies. LG H&H also produces The History of Whoo and several other Korean prestige brands. This means ISA KNOX benefits from industrial-scale formulation infrastructure while maintaining Korean Cosmetics Act compliance throughout.
What does the Age Focus Vital Collagen Essential Skin 160ml do?
The Age Focus Vital Collagen Essential Skin 160ml is a toner-format first step that delivers collagen-supporting actives at the prep layer of your routine. It is designed to improve skin firmness over time when used daily rather than providing immediate visible lift. At 160ml it is a full-size product suitable for morning and evening use over several months.
Is the Age Focus Prime Double Effect Ampoule Skin 160ml a serum or a toner?
It occupies both roles. The Double Effect designation means the product functions as both a prep step and a targeted treatment in one layer. Apply it after cleansing in place of a separate toner and serum if you prefer a streamlined routine. The 160ml size is larger than most serums, reflecting its use as a daily two-in-one step rather than a spot treatment.
When should I use the Raha Trusel Advanced Recovery Toner 150ml instead of a standard ISA KNOX toner?
The Raha Trusel Advanced Recovery Toner is the right pick when your skin is in an active recovery phase - for example, after a chemical peel, laser treatment, or a period of barrier disruption from over-exfoliation. It addresses healing and sensitivity rather than maintenance hydration or anti-aging. If your skin is stable, the Nox Lab Moisture Skin or Age Focus Vital Collagen Essential Skin are better daily drivers.
What skin concerns does the LXNEW Vita Max Ampoule 30ml address?
The LXNEW Vita Max Ampoule focuses on brightening and vitamin delivery. It is best for skin showing dullness, uneven tone, or post-inflammatory marks that haven't fully faded. At 30ml it is a concentrated treatment size - use two to three drops after toner and before emulsion. It pairs well with the Nox Lab or Age Focus toner layers but does not replace a barrier-repair formula if that is your primary concern.
What is the Platinum Moisture Skin Softener 100ml best suited to?
The Platinum Moisture Skin Softener is a compact-sized (100ml) daily softener for normal to dry skin that wants a reliable prep step without a full-size commitment. The softener format is lighter than an essence and primes the skin surface for the layers that follow. It is a practical travel-friendly size for regular ISA KNOX users who already know the formula works for their skin.
How does the Nox Lab Moisture Skin fit into a multi-step routine?
The Nox Lab Moisture Skin is a lightweight toner designed as the first liquid step after cleansing. It provides a base layer of hydration without weight or residue. It works well for combination, normal, and oily skin types that find thicker toners too heavy. Follow it with a serum or ampoule and then an emulsion or light gel cream for a complete routine.
Can the Homme Cool Touch Aftershave Skin replace a full skincare routine?
The Homme Cool Touch Aftershave/Skin is primarily a toner-function product and works best as a starting step rather than a standalone routine. It calms post-shave skin and provides initial hydration, but for sustained moisture and any targeted concern (firmness, oiliness, or irritation), following it with an emulsion or light cream gives noticeably better results. The portable format makes it convenient for those who travel or prefer a minimal kit on the road.
Is the Age Focus Homme Aftershave Skin 150ml the same formula as the women's Age Focus line?
The Age Focus Homme line uses a separate formulation tuned for men's skin, which typically has higher sebum production and a coarser texture than women's skin. While both share the anti-aging and collagen-support orientation of the Age Focus family, the Homme version is formulated to work on skin that is shaved regularly and may be prone to mild irritation. The 150ml size is generous for a dedicated aftershave-skin product.
What is the Cover Supreme Rich Essence Skin Cover Fact 10g?
The Cover Supreme Rich Essence Skin Cover Fact is a hybrid product - part skincare, part light coverage base. At 10g it is a travel or secondary size, not a primary compact. It applies like a cushion or CC cushion, providing sheer coverage while delivering essence actives into the skin. It is best evaluated as a finishing skincare step rather than a makeup foundation substitute. If you want full coverage, this is not the right product; for a light, skin-like finish with added treatment, it fits well at the end of a morning routine before SPF.
Can I mix products from different ISA KNOX sub-lines in one routine?
Yes. ISA KNOX sub-lines share a consistent formulation philosophy and do not conflict with each other in a standard layering routine. A common approach is to use the Raha Trusel Advanced Recovery Toner as a first step on nights when the skin needs repair, the LXNEW Vita Max Ampoule as a treatment on alternate nights for brightening, and the Age Focus Vital Collagen Skin as a morning-only toner for firmness. Keep the layering order (thinnest to thickest) consistent regardless of which sub-line the product comes from.
Are the ISA KNOX products on skinsli the Korean-market versions?
Yes. The ISA KNOX products on skinsli are sourced from Korean distributors and sold in Korean-market packaging. Formulations are not localised or reformulated for the US market. Ingredient lists are in INCI format (visible on each product page) even when the outer packaging text is Korean. This means the formulas are identical to what Korean consumers purchase domestically.
Which ISA KNOX skin products are best for oily or combination skin?
For oily or combination skin, the lighter textures in this collection are the better starting point. The Nox Lab Moisture Skin is a thin, non-greasy toner layer. The Age Focus Vital Collagen Essential Skin 160ml is lighter than most creams in the range and works well in the toner slot without leaving a heavy finish. Avoid the richer Terbina AD Massage Creams for daily use on oily skin - reserve those for dry-patch treatment or cooler months when the skin runs drier.
If I am new to ISA KNOX, which product should I try first?
The best entry point depends on your primary concern. For general hydration and a reliable daily routine, start with the Nox Lab Moisture Skin as your toner and one of the emulsions. For anti-aging focus, the Age Focus Vital Collagen Essential Skin 160ml gives you the brand's most established line in a single daily step. If your skin is reactive or in recovery, the Raha Trusel Advanced Recovery Toner 150ml is the most targeted first pick. All three are mid-range priced products with full-size volumes suitable for evaluating over several weeks.