What the Study Revealed
Consumer Perception Study Results
Our Commitment to Proof
When we set out to prove what a simple three step routine could do, we partnered with an independent third party research firm to run a 28 day in home use test. The study included 48 participants representing Fitzpatrick Skin Types I through VI and a wide range of skin goals and concerns. Everyone used the full Jo Collection Nighttime Essentials routine nightly, following a consistent protocol.
We believe transparency builds trust, so the results shown here reflect the study outcomes exactly as reported by the independent research team. The results reflect how this system performs on real people with real, diverse skin.
- n = 48 participants
- age range: 22- 55 years old
- 4 week Consumer Perception Trial
- Fitzpatrick Scale Skin Types I-IV
- Study Conducted October-November 2025.
- Results reflect data collected day 1, 14, 28.
For this study, we partnered with an independent third party research firm (The Benchmarking Company) to run a 28 day in home use test on the three products in the Jo Collection Nighttime Essentials Kit: Green Queen Hydrating Facial Cleanser, The Pineapple Peel Daily Leave on Exfoliator, and Hydrating Night Cream. Fifty participants were recruited and forty eight completed the full protocol and all required surveys. Each panelist used the cleanser twice a day and used the peel and night cream every evening for the full 28 days. They completed self assessment questionnaires on Day 1, Day 14, and Day 28 to report on product experience and perceived benefits. All claims were evaluated using a standard four point scale (Strongly Agree, Agree, Disagree, Strongly Disagree). The products were fully branded during testing so panelists evaluated them as they would in real life.
These results are based on consumer self-assessment collected during a controlled in-home use test. They reflect participant perception, not medical claims or instrumental measurements.
This study was run using industry standard methods for evaluating consumer perception results. The independent research team followed the ASTM guidelines for sensory claim substantiation and used binomial T tests to analyze changes over time. All findings were reviewed at a 95 percent confidence interval.
These results come from a 28 day consumer perception study. Because the study group was limited in size, the findings are not intended to represent outcomes for every individual. Instead, they reflect the shared experiences of participants who followed the same routine over the same period of time.
All results are based on participant self-assessment. They describe how users perceived changes in the look and feel of their skin, rather than clinical diagnoses or instrument-based measurements.
As with any skincare routine, individual results may vary based on skin type, age, and how consistently the products are used. These results are meant to provide transparency and real-world context, not guarantees.
We believe skincare brands should show their work. That is why we publish our methodologies, results, and limitations rather than relying on vague marketing claims.
key findings
96%
saw healthier looking skin
after 28 days using the full routine
100%
said their skin felt clean
after using Green Queen Hydrating Facial Cleanser
98%
said it diminished rough, dry skin
after nightly use of The Pineapple Peel
Daily acids only work if your skin can actually tolerate them. In our 28 day in home use test, the Nighttime Essentials routine delivered strong results without sacrificing comfort.
Gentle by design. Proven in 28 days.
- Zero irritation reported
- Zero redness reported
- Zero stinging or burning reported
How results improved from Day 1 to Day 28
The entire philosophy of the Nighttime Essentials Kit is getting your skin back on track. The longer you use the products consistently, the better your skin looks. The results speak for themselves. Across all products, reported benefits increased from Day 1 to Day 28, indicating improved outcomes with consistent use over time.
Nighttime Essentials Kit
full 3 step routine
- My skin’s imperfections are less noticeable 54% → 85%
- My skin has noticeably improved since using this regimen 54% → 85%
- Improves the look of my complexion 75% → 92%
Green Queen Cleanser
hydrating facial cleanser
- Skin is healthier looking 83% → 98%
- Skin looks clarified 85% → 96%
- Pores look purified 73% → 85%
The Pineapple Peel
daily leave on exfoliator
- Diminishes appearance of rough, dry skin 77% → 98%
- Gives me a more even looking complexion 73% → 94%
- My skin’s healthy glow is restored 71% → 92%
Jo Night Cream
hydrating night treatment
- My skin’s elasticity is visibly improved 52% → 83%
- My skin tone looks more even 67% → 88%
- Skin texture feels smoother 85% → 100%
* Percentages reflect participants who selected “Strongly agree” or “Agree” at Day 1 and Day 28 in an independent 28 day in home consumer use test with 48 participants using the Jo Collection Nighttime Essentials Kit as directed.
Consistency matters. Results build over time.
The Nighttime Essentials Kit is designed to work with your skin’s natural repair cycle. As participants used the routine consistently, their results climbed from Day 1 through Day 28.
Nighttime Essentials Kit
“My skin’s imperfections are less noticeable”
Green Queen Cleanser
“Skin is healthier looking”
The Pineapple Peel
“Diminishes appearance of rough, dry skin”
Jo Night Cream
“My skin’s elasticity is visibly improved”
* Percentages reflect participants who selected “Strongly agree” or “Agree” at Day 1, Day 14, and Day 28 in an independent 28 day in home consumer use test with 48 participants using the Jo Collection Nighttime Essentials Kit as directed.
Consumer perception results by product
Below are all Day 28 consumer perception claims at or above 80 percent agreement for the Jo Collection Nighttime Essentials routine and each individual product.
Nighttime Essentials Kit (full 3 step routine results) +
- 96% said it gives them healthier looking skin
- 94% said their skin feels deeply nourished
- 92% said their skin feels renewed
- 92% said it improves the look of their complexion
- 92% said their skin feels deeply hydrated
- 90% said it awakens tired looking skin
- 90% said their skin feels perfectly balanced
- 90% said they love this skincare regimen
- 90% said their facial skin looks renewed
- 85% said their skin feels softer than it has in years
- 85% said their skin’s imperfections are less noticeable
- 85% said their skin has noticeably improved since using this regimen
- 83% said their skin’s youthful glow is restored
- 81% said it gives them younger looking skin
Green Queen Hydrating Facial Cleanser +
- 100% said their skin looks clean
- 100% said their skin feels clean
- 98% said it cleanses without stripping
- 98% said their skin looks soft
- 98% said their skin feels soft
- 98% said their skin feels refreshed
- 98% said their skin is healthier looking
- 98% said it rinses clean without leaving residue
- 98% said their skin looks nourished
- 96% said their skin feels detoxified
- 96% said the cleanser helps remove pore debris
- 96% said their skin looks clarified
- 96% said the cleanser is soothing to their skin
- 96% said their skin feels more balanced
- 96% said their skin feels healthier
- 96% said their skin feels hydrated
- 96% said their skin looks hydrated
- 96% said their skin feels nourished
- 96% said it is gentle enough to use every day
- 96% said their skin does not feel tight or dry after application
- 94% said their skin feels calmed
- 94% said their skin looks refined
- 94% said their skin feels comfortable after using this cleanser
- 92% said their skin looks detoxified
- 90% said it removes excess oil
- 88% said it removes all traces of dirt and makeup
- 85% said their pores look purified
The Pineapple Peel Daily Leave on Exfoliator +
- 98% said it diminishes the appearance of rough, dry skin
- 98% said their skin texture feels smoother
- 98% said their skin looks nourished
- 96% said it gently exfoliates
- 96% said their skin feels soft
- 96% said their skin looks polished
- 96% said their skin feels polished
- 96% said their skin looks brighter
- 96% said it leaves their skin feeling renewed
- 96% said their skin feels silky smooth
- 96% said it does not dry out their skin
- 96% said it perfectly prepares skin for the next step in their regimen
- 94% said it is gentle enough to use every day
- 94% said it revives dull skin
- 94% said their skin looks instantly brighter
- 94% said it gives them a more even looking complexion
- 92% said their skin’s healthy glow is restored
- 92% said their skin looks rejuvenated
- 92% said their skin looks luminous
- 92% said their skin looks radiant
- 92% said it gives their skin an instant glow
- 90% said it feels hydrating as it exfoliates
- 88% said it gives their skin a youthful glow
- 85% said their pores look refined
Jo Night Cream +
- 100% said their skin feels hydrated
- 100% said it absorbs into the skin easily
- 100% said it has a non greasy feel
- 100% said their skin feels soft
- 100% said their skin feels smoother
- 100% said their skin texture feels smoother
- 100% said their skin feels soothed
- 98% said their skin feels nourished
- 98% said their skin feels hydrated by morning
- 98% said their skin feels protected from dryness
- 98% said their skin looks hydrated
- 98% said it comforts their skin
- 98% said their skin feels less stressed
- 98% said it visibly calms their skin
- 96% said their skin feels balanced
- 96% said their skin feels more supple
- 94% said their skin feels instantly hydrated
- 94% said it deeply nourishes their skin
- 94% said their skin looks luminous in the morning
- 92% said it deeply hydrates their skin
- 90% said their skin tone looks more even
- 83% said their skin’s elasticity is visibly improved
* All percentages shown reflect the proportion of participants who selected “Strongly agree” or “Agree” at Day 28 in an independent 28 day in home consumer use test with 48 participants using the Jo Collection Nighttime Essentials Kit as directed.
Clinically Tested Products
Shop The Third-party Tested Products
Clinical Style Results
28-day consumer perception in-home use test, conducted by The Benchmarking Company (independent third-party).
Study Overview
Methodology
Participants used the cleanser twice daily and the exfoliator and night cream nightly for 28 days. Self-assessment surveys were completed on Day 1, Day 14, and Day 28 using a 4-point agreement scale. The study followed ASTM E1958-21 sensory claim substantiation guidelines.
Safety
No adverse reactions were reported throughout the study.
Full protocol and detailed data tables are available on request.
Key Outcomes
Regimen results (Day 28)
96 percent healthier looking skin
94 percent deeply nourished
92 percent renewed and more hydrated
94 percent deeply nourished
92 percent renewed and more hydrated
Nighttime Essentials regimen: cleanser, peel, night cream
Improvement over time
Imperfections less noticeable: 54 → 85 percent
Skin noticeably improved: 54 → 85 percent
Fine lines appear diminished: 44 → 71 percent
Skin noticeably improved: 54 → 85 percent
Fine lines appear diminished: 44 → 71 percent
Measured from Day 1 to Day 28.
Product satisfaction
Effectiveness: 8.4–8.9 / 10
Happiness: 8.6–9.0 / 10
Star rating: 4.3–4.5 / 5
Happiness: 8.6–9.0 / 10
Star rating: 4.3–4.5 / 5
Averages across the three tested products.
Focus areas
- Hydration, barrier comfort, and overnight renewal
- Texture smoothing and roughness reduction
- Radiance, glow, and more even-looking tone
