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Lifree

Unicharm

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If you are looking in retail stores for a product used in a hospital or care facility, you can also check the official product correspondence chart.Diaper product correspondence chart ↗

The figures shown are reference values for products and sizes verified on manufacturers’ official pages. Ranges show the lowest and highest listed values checked; they do not mean that every value in between is available. For hospital and care-facility products, mL figures indicate reference absorbency, not total absorption capacity. Light incontinence pad absorbency is shown in cc. Specifications and measurement conditions vary by product. Figures checked: October 8, 2026.

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Manufacturer updates

Unicharm news

Coverage: January 1, 2023–October 27, 2026. Entries follow the publication dates of manufacturers’ official announcements.

Continence care research

Unicharm compares caregiver lower-back loading during different diaper-changing methods

Unicharm used motion measurement and musculoskeletal simulation to compare bed-based changes of tape-fastened adult diapers with toilet-based changes of pull-on adult diapers using a toileting support lift. For insert-pad-only changes, the cumulative loading index with the lift was 40 when bed-based changing was set to 100. This preliminary investigation used one pair of adults acting as caregiver and care recipient. Product types and settings also differed, so it does not establish a product-only effect or prevention of back pain. The conference was held on September 5–6; the report was published on October 16.

Read the official announcement ↗
New and improved products

Lifree Nobiru Fit tape-fastened adult diapers updated with split tapes and a blue positioning line

Unicharm announced an updated Lifree Nobiru Fit tape-fastened adult diaper range, rolling out across Japan from early October 2026. Split upper and lower tapes allow separate adjustment around the abdomen and legs, while a blue line helps identify the position against the back. The announcement covers the thin Keikai and thin Anshin versions.

Read the official announcement ↗
Light incontinence pads

Launch of Charm Nap ultra-thin slim pads: approximately 2mm thick※1 for comfort like wearing 1 layer of underwear※2

Unicharm is launching Charm Nap ultra-thin slim light incontinence pads for women nationwide on September 15. The 3cc and 5cc versions are approximately 1.5mm thick; the 10cc, 15cc and 30cc versions approximately 2mm; and the 50cc version approximately 2.5mm. A flexible absorbent core and mesh sheet are designed to follow body movement and feel comfortable against the skin.

Read the manufacturer’s official announcement ↗
Incontinence insert pads · Research

September 3, Sleep Day: reducing nighttime discomfort and anxiety across life stages through a scientific approach to sleep quality and daytime performance

For Sleep Day, Unicharm introduced efforts to reduce nighttime discomfort and anxiety. In care, it reported joint research with Hiroshima University linking reduced urine return to improvements in sleep quantity and quality. It also explains the structure used in Lifree incontinence insert pads and consideration for trapped skin moisture and the burden of nighttime changes.

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Continence care supplies

Launch of Lifree perineal cleansing foam SkinCondition to reduce preparation and cleanup time in care

Unicharm is launching Lifree perineal cleansing foam SkinCondition for hospitals and care facilities in mid-June. It says the one-push foam is wiped away after use, removing the need for bottle preparation, warm-water adjustment, rinsing and post-use disinfection. Cleansing, moisturizing and skin-protection functions aim to reduce work in care settings.

Read the manufacturer’s official announcement ↗
Incontinence insert pads

Launch of Lifree overnight dry pads SkinCondition Comfort Night with proprietary technology※1 addressing leak concerns during understaffed night shifts

Unicharm is launching Lifree overnight dry incontinence insert pads SkinCondition Comfort Night for hospitals and care facilities in mid-June. The design addresses seepage through guards when side-lying or seated and uses an absorbent core fitting around the legs and an antibacterial sheet. It considers leakage, trapped moisture and stress on the skin.

Read the manufacturer’s official announcement ↗
Pull-on adult diapers · Assistance with use

Lifree launches an AI assessment that suggests how to put on pull-on adult diapers through videos

Unicharm launched the Lifree assessment for putting on pull-on adult diapers. Users hold a smartphone vertically and record themselves moving their arms and legs. AI analyzes physical condition and suggests video tips from 400 combinations for putting the diaper on more easily. It addresses difficulties experienced by wearers and caregivers when passing the feet through during changes.

Read the manufacturer’s official announcement ↗
Pull-on adult diapers

Summer-limited Lifree ultra-thin underwear-feel pull-on adult diapers: reducing diaper temperature by 2°C※ for comfort in hot weather

Unicharm is rolling out a summer-limited version of Lifree ultra-thin underwear-feel pull-on adult diapers nationwide from late May. A sweat-absorbing sheet absorbs and disperses moisture around the buttocks. The company says drying is 10 times faster than its previous product and temperature inside the diaper is reduced by 2°C. The waist section is also half as thick, addressing trapped moisture and bulk in hot weather.

Read the manufacturer’s official announcement ↗
Pull-on adult diapers

Lifree pull-on adult diapers renewed with positive photographic packaging, expressing “Abilities can grow, one at a time”

Unicharm announced a phased rollout from late April of Lifree pull-on adult diaper packaging centered on photographs of everyday life. Replacing previous illustrations, it uses bright colors and photos that help convey wearers’ circumstances and outdoor activities. Transition dates vary by product, with further rollout from mid-May to early June.

Read the manufacturer’s official announcement ↗
Incontinence insert pads

Launch of Lifree low-irritation incontinence insert pads: world-first※1 technology reduces skin friction by 30%※2

Unicharm is launching Lifree low-irritation incontinence insert pads nationwide on April 7. It says a sheet on the buttocks side follows body movement, reducing skin friction by approximately 30% compared with its previous product. A 2-layer structure reduces urine return, and a textured topsheet reduces sticking to the skin, considering irritation during longer use.

Read the manufacturer’s official announcement ↗
Incontinence insert pads

Launch of Lifree slip-resistant deodorizing insert pads for pull-on adult diapers, with world-first※1 odor-blocking tape and a “99% odor reduction※2” activated-carbon sheet

Unicharm is launching Lifree slip-resistant deodorizing insert pads specifically for pull-on adult diapers nationwide on April 7. An activated-carbon sheet adsorbs urine-odor components. After use, internal tape seals the pad folded in 2 to limit odor spread during disposal. The design responds to users’ concerns about odor during changes and in waste bins.

Read the manufacturer’s official announcement ↗
Diaper recycling

Unicharm begins developing a dry-washing technology for used pull-on diapers with Fuji Clean in Kagawa, aiming to reduce water use to approximately 1/50※1

Unicharm began developing a dry-washing process with Fuji Clean to recycle used pull-on diapers. Using a reusable solvent and sterilization/bleaching technology, it aims to reduce water use to approximately 1/50 of the conventional water-flow washing process. Development in an experimental building is planned from 2026, plant construction in 2028 and operation in 2029.

Read the manufacturer’s official announcement ↗
Pull-on adult diapers

Launch of Lifree underwear-feel Premium pull-on adult diapers for exceptional comfort

Unicharm announced a nationwide launch of Lifree underwear-feel Premium pull-on adult diapers, designed to feel closer to underwear. Materials around the abdomen and a thin absorbent core address discomfort when wearing them.

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Pull-on adult diapers

Launch of Lifree thin and light pull-on adult diapers, Organic Cotton Touch

Unicharm announced a nationwide launch of Lifree thin and light pull-on adult diapers, Organic Cotton Touch, with a mesh sheet made of 100% organic cotton around the abdomen. The product considers feel against the skin and comfort for people wearing it for longer periods.

Read the manufacturer’s official announcement ↗
Incontinence insert pads

Launch of Lifree slip-resistant thin insert pads for pull-on adult diapers

Unicharm announced Lifree slip-resistant thin insert pads for use with pull-on adult diapers. A flexible-fitting design follows the body, emphasizing ease of movement and comfort when a pad is fitted.

Read the manufacturer’s official announcement ↗
Recycling

National Invention Award for technology recovering high-purity pulp from used diapers

Unicharm announced that its technology for recovering high-purity pulp from used diapers received the Asahi Shimbun Award and an invention-implementation achievement award in the National Invention Awards. It introduces reuse of recovered materials in products as a technology related to adult diaper recycling.

Read the manufacturer’s official announcement ↗
Tape-fastened adult diapers · Recycling

Launch of Lifree stretchy-fit thin and light tape-fastened adult diapers RefF using recycled pulp

Unicharm announced Lifree stretchy-fit thin and light tape-fastened adult diapers RefF, using pulp recovered from used adult diapers in part of the absorbent paper. This is an effort to incorporate recycled materials into tape-fastened adult diapers.

Read the manufacturer’s official announcement ↗
Survey · Incontinence care

Survey of men’s experience of urine leakage and use of care products

For International Men’s Day, Unicharm announced a survey of men’s experience of urine leakage and care-product use. It found that approximately 1 in 5 men had experienced leakage and that some had taken no measures to address it. The announcement also discusses why urine leakage can be difficult to talk about.

Read the manufacturer’s official announcement ↗
Light incontinence pads

Launch of Lifree Sawayaka Pad Yoru Anshin light incontinence pads for nighttime

Unicharm announced a nationwide launch of Lifree Sawayaka Pad Yoru Anshin for concerns about leakage during sleep or on waking. The light incontinence pads consider nighttime posture changes and sudden morning urges, proposing a use distinct from daytime products.

Read the manufacturer’s official announcement ↗
Pull-on adult diapers

Launch of Lifree overnight pull-on adult diapers with improved fit around the legs

Unicharm announced a nationwide launch of Lifree overnight pull-on adult diapers with an absorbent core following the leg area, which can become thinner with age. Addressing leakage through gaps during sleep, the range includes 5-void and 7-void reference absorption versions.

Read the manufacturer’s official announcement ↗
Recycling

Partnership with Oji Nepia on resource circulation of used diapers

Unicharm announced cooperation with Oji Nepia on resource circulation of used diapers. Solid fuel made from collected diapers is used to generate electricity for Oji Nepia’s toilet-roll production. The announcement does not state that recycled diaper pulp is mixed into the toilet rolls.

Read the manufacturer’s official announcement ↗
Tape-fastened adult diapers

Improved Lifree stretchy-fit thin and light tape-fastened adult diapers with fastening-position marks

Unicharm added marks showing waist fastening positions to Lifree stretchy-fit thin and light tape-fastened adult diapers. It announced a nationwide launch of the improvement to help even less-experienced caregivers check positions and fit the product. The aim is to reduce differences between people fitting diapers by providing a fastening-position guide.

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Light incontinence pads

Launch of a large pack of Lifree Sawayaka Pad, 100cc

Unicharm announced a nationwide launch of a 39-pad pack of Lifree Sawayaka Pad with 100cc absorbency. A larger-pack option is added for people regularly using higher-absorbency products, considering the effort of shopping. The absorbency figure is the manufacturer’s label for that product and does not guarantee urine volume in actual use.

Read the manufacturer’s official announcement ↗
Continence care supplies

Launch of Lifree perineal cleansing essence for hospitals and care facilities

Unicharm announced Lifree perineal cleansing essence for continence care in hospitals and care facilities. This concentrated cleanser is introduced for wipe-off care. It is a related care supply, not a diaper product.

Read the manufacturer’s official announcement ↗
Incontinence insert pads · Recycling

Launch of Lifree RefF overnight dry pads Ultra using recycled pulp

Unicharm improved an overnight insert pad that uses pulp recovered from used pull-on adult diapers as part of its raw materials. It announced changes to odor-control and absorption functions and a launch for hospitals and care facilities in Kyushu. Recycled pulp forms only part of the materials, and the target region is limited to Kyushu.

Read the manufacturer’s official announcement ↗
Light incontinence pads for men

Launch of a small pack of Lifree Sawayaka comfort sheets for men, 10cc

Unicharm announced a 5-sheet pack of 10cc Lifree Sawayaka comfort sheets for men. The smaller quantity makes a first purchase easier and expands the options for absorbent sheets worn inside underwear.

Read the manufacturer’s official announcement ↗
Recycling

Technology developed with Havix to process recycled diaper pulp into base paper

Unicharm and Havix developed technology for processing pulp recovered from used pull-on adult diapers into base paper for diapers. The company announced commercial use from January 2024 to increase the supply capacity for closed-loop recycled products.

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Pull-on adult diapers

Improved Lifree thin and light pull-on adult diapers using ultrasonic bonding

Unicharm announced ultrasonic bonding in the waist section of Lifree thin and light pull-on adult diapers, making them easier to pull up with less force while considering comfort. It says the change also improves compression during packing and loading efficiency. The phased launch begins in mid-November, with product changes and reduced environmental impact presented together.

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Tape-fastened adult diapers · Recycling

S and L added to Lifree RefF tape-fastened adult diapers with side-leak protection using recycled pulp

Unicharm added sizes S and L to Lifree RefF tape-fastened adult diapers with side-leak protection, using pulp recovered from used pull-on adult diapers. The announced launch is for hospitals and care facilities in Kyushu. It is limited to Kyushu and was not presented as a nationwide general-retail product.

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Light incontinence pads

Launch of Lifree Sawayaka Pad Organic Cotton

Unicharm launched Lifree Sawayaka Pad Organic Cotton, using organic cotton in the skin-facing topsheet. Absorbencies of 20cc, 45cc, 80cc and 120cc are offered, considering the feel of incontinence-care products against the skin.

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Pull-on adult diapers

Launch of Lifree thin comfort pull-on adult diapers Regular for care facilities

Unicharm announced Lifree thin comfort pull-on adult diapers Regular for hospitals and care facilities. The thin absorbent core is described as reducing bulk when worn and considering ease of movement for the wearer.

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Incontinence insert pads

Large packs added to Lifree slip-resistant insert pads for pull-on adult diapers

Unicharm added large packs of Lifree slip-resistant insert pads for pull-on adult diapers. A 72-pad pack with a 2-void reference absorption count and a 42-pad pack with a 3-void count address the shopping burden for daily users.

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Survey · Incontinence care for men

Survey published on men’s urinary issues and care methods

Unicharm surveyed 1,009 men in their 20s through 60s about urinary issues. It reported that 50% had experienced some form of issue, while 74% knew about absorbent sheets or pads for men. The findings inform consideration of awareness and use of men’s incontinence-care products.

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Light incontinence pads for men

Launch of Lifree Sawayaka comfort sheets for men

Unicharm announced a nationwide launch of Lifree Sawayaka comfort sheets for men, worn inside underwear. The 3 options have absorbencies of 3cc, 5cc and 10cc, with attention to thinness and clear positioning.

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Light incontinence pads

Large packs added to Charm Nap Kyusui Sarafi Organic Cotton

Unicharm launched large packs of Charm Nap Kyusui Sarafi Organic Cotton, with organic cotton in the skin-facing sheet. The 3 options, 3cc, 5cc and 15cc, consider the shopping effort of people changing frequently.

Read the manufacturer’s official announcement ↗