Sum37 Breath

sum37 Breath is the brand's sub-line emphasizing fermentation at body temperature (37 degrees) for optimal skin absorption. The 8 products include the Breath 37 Hours Energy Sweet Lotion 350 ml, Breath 37 Degree Time Energy Resetting Toner 170 ml, Emulsion 120 ml, Eye Cream 25 ml, Breath 37 Degree Rosicsumma Elixir Emulsion 130 ml, Breath Deeromme All-in-One Firming Serum, Secret Essence Mist 180 ml, and Sun Away Cooling CC Refill.

  • 37-degree fermentation
  • Time Energy and Rosicsumma
  • Full routine coverage
  • Korean cosmetics

By Skinsli editorial Updated

Buying guide

sum37 Breath Line: 37-Degree Fermentation Skincare Guide

sum37 Breath is the brand's body-temperature fermentation sub-line, emphasizing actives that activate or deliver at 37 degrees (body temperature). The 8 products cover a full routine: toner, emulsions, lotion, eye cream, all-in-one serum, mist, and a CC sun product.

What the Breath 37 Degree concept means

The 37 Degree naming in sum37 Breath products refers to fermentation or activation optimized at human body temperature (37°C). sum37's fermentation science is central to the brand, and the Breath line takes this a step further by emphasizing ingredient interaction with the warmth of skin on contact. When these formulas reach body temperature, the active compounds are designed to become more permeable and penetrate more efficiently.

This is a formulation philosophy rather than a single ingredient: the actives in the 37 Degree products are selected and processed to perform at this temperature threshold.

Breath 37 Degree Time Energy Resetting Toner 170 ml

The Breath version of the Time Energy Resetting Toner 170 ml is labeled as a 20-Year Renewal edition, indicating it incorporates refinements from sum37's 20 years of fermentation research. It functions as the first toner step in the routine - applied after cleansing before any essence or serum.

The Resetting designation targets skin renewal: texture irregularities, dullness, and surface cells that have not turned over efficiently. The 170 ml provides a full two to three months of daily use at standard dosing.

Breath 37 Degree Time Energy Emulsion 120 ml

The Breath 37 Degree Time Energy Emulsion 120 ml (20 Years Renewal Y) is the emulsion step matching the Breath Resetting Toner. Applied after toner and before cream, it layers additional fermented actives in a thin moisturizing matrix. The renewal focus is consistent with the toner: both target skin turnover and renewal rather than a specific concern like brightening or firming.

Pairing the toner and emulsion from the same Breath line ensures formula consistency. The Y designation in the name marks the version year iteration.

Breath 37 Degree Rosicsumma Elixir Emulsion 130 ml

The Rosicsumma Elixir Emulsion 130 ml is from sum37's Rosicsumma tier, which uses the brand's highest-grade botanical extract base. Where standard Breath products use the core fermentation complex, the Rosicsumma variant incorporates Rosicsumma - a concentrated elixir derived from a premium botanical source within the 37-ingredient sum37 base.

The emulsion format at 130 ml is slightly larger than the Time Energy emulsion, providing more uses per bottle. This is the more potent emulsion option when the goal is anti-aging and concentrated botanical renewal rather than general maintenance.

Breath 37 Hours Energy Sweet Lotion 350 ml

The Breath 37 Hours Energy Sweet Lotion 350 ml is the largest-volume product in the Breath range. The 37 Hours naming refers to the claimed sustained energy or moisture-delivery duration - a marketing reference to extended efficacy rather than a literal 37-hour active window. The Sweet Lotion texture is a lightweight body-adjacent lotion that works as both a facial and body moisturizer.

At 350 ml, this is the most economical per-ml product in the Breath line and suitable for generous daily use. For users who want to cover both face and body with the same sum37 formulation philosophy, this lotion bridges both.

Breath 37 Degree Time Energy Moist Firming Eye Cream 25 ml

The Moist Firming Eye Cream 25 ml combines two targets in a single eye product: moisture and firming. The eye area loses collagen and elasticity faster than the rest of the face, so addressing both dimensions in one step is efficient. At 25 ml, it provides approximately three months of daily morning and evening use around both eyes.

Apply with the ring finger using a gentle tapping motion from the inner to outer corner. The 37 Degree fermentation base means the cream activates slightly on contact with the warmth of your fingertip and skin.

Breath Sun Away Cooling Sun CC IEX Refill

The Breath Sun Away Cooling Sun CC IEX Refill is a tinted sun care product in a refill format. CC (Color Correcting) formulas provide light coverage alongside SPF protection, correcting skin tone while protecting. The Cooling designation indicates a formula that reduces heat sensation on application.

The Refill format reduces packaging and cost per ml compared to buying a full compact. It fits the matching Breath Sun Away compact, which should be checked for compatibility before ordering the refill alone.

FAQ

Frequently asked questions

  • skinsli carries 8 sum37 Breath products: the Breath 37 Hours Energy Sweet Lotion 350 ml, Breath 37 Degree Time Energy Resetting Toner 170 ml, Emulsion 120 ml, Eye Cream 25 ml, Breath 37 Degree Rosicsumma Elixir Emulsion 130 ml, Breath Deeromme All-in-One Firming Serum, Breath Secret Essence Mist 180 ml, and Breath Sun Away Cooling CC IEX Refill.

  • 37 Degree refers to fermentation and activation at human body temperature (37°C). sum37 formulates these products with actives that are optimized to become more permeable and effective on contact with body-temperature skin. It is a formulation philosophy applied across the Breath sub-line rather than a single ingredient.

  • The 20 Years Renewal designation marks an updated edition incorporating refinements from sum37's 20 years of fermentation research. It is the most current generation of the Time Energy Resetting Toner in the Breath line, with formula updates to the active delivery compared to earlier versions.

  • The Rosicsumma Elixir Emulsion 130 ml uses a higher-grade botanical extract base and is the more potent option. The Time Energy Emulsion 120 ml is the standard renewal emulsion for everyday maintenance. Choose Rosicsumma if the goal is concentrated anti-aging treatment; choose Time Energy for consistent daily renewal support.

  • Yes. The Sweet Lotion 350 ml is formulated for face use but its lightweight texture works for body application as well. The large 350 ml size makes it practical for combined face and body use. It is the most cost-efficient product per ml in the Breath range for users who want to use one sum37 product across multiple areas.

  • Apply with the ring finger using a gentle tapping motion around the orbital bone, moving from inner to outer corner. Do not rub or pull. The warmth of the ring finger activates the 37 Degree formula as it contacts skin. Use morning and evening after serums and before the face cream.

  • The Refill is designed for use with the matching Breath Sun Away compact. Verify your compact model against the refill specifications before ordering. Using the wrong refill in a non-matching compact can result in a poor fit or improper dosing.

  • Apply in this sequence: Breath Secret Essence Mist (as prep or first essence), Resetting Toner 170 ml, Rosicsumma Elixir Emulsion 130 ml or Time Energy Emulsion 120 ml, Eye Cream 25 ml around the orbital area, then Sweet Lotion 350 ml or Deeromme All-in-One as the final leave-on step. Use the Sun CC in the morning as the last step before makeup.