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✨ Beauty & Grooming · Step 27/28
Compare to a reference cologne
Compare to a reference cologne — step 27 of 28 in DIY Niche Cologne for Men (Woody Citrus Eau de Toilette). Spritz a store cologne you like on one wrist, yours on the other after 30 minutes.
From course: DIY Niche Cologne for Men (Woody Citrus Eau de Toilette)

✨ Beauty & Grooming · Step 28/28
Pass criteria
Pass criteria — step 28 of 28 in DIY Niche Cologne for Men (Woody Citrus Eau de Toilette). You pass when you have: • 50 ml labeled woody-citrus EDT at documented ~12% • Formula card with grams or drops • 7-day age completed • Wear…
From course: DIY Niche Cologne for Men (Woody Citrus Eau de Toilette)

✨ Beauty & Grooming · Step 1/28
Alcohol-rinse and dry three 10 ml rollers
Alcohol-rinse and dry three 10 ml rollers — step 1 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). Rinse bottles and rollers with isopropyl alcohol. Air-dry fully upside down on a clean towel — minimum 20 minutes.
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 2/28
Write the 10 ml dilution chart in your notebook
Write the 10 ml dilution chart in your notebook — step 2 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). Tape this chart inside your oil cabinet: 10 ml ROLLER DILUTION • 10% = 1.0 ml scent + 9.0 ml carrier • 15% = 1.5 ml scent + 8.5 ml carrier…
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 3/28
Calibrate drops-per-ml for your dropper
Calibrate drops-per-ml for your dropper — step 3 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). Count drops of carrier into a tiny cup on the scale until you reach 1.0 g (~1 ml for jojoba/FCO).
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 4/28
Choose carrier: jojoba vs FCO
Choose carrier: jojoba vs FCO — step 4 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). Jojoba: closest to skin sebum, very stable, slightly higher cost. FCO: clear, cheap, nearly odorless, excellent beginner carrier.
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 5/28
Phototoxic citrus safety card
Phototoxic citrus safety card — step 5 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). Cold-pressed bergamot / lemon / lime / grapefruit can burn skin in UV. Rules for this course: • Prefer bergamot FCF (furanocoumarin-free) •…
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 6/28
Strip-map Vanilla Soft
Strip-map Vanilla Soft — step 6 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). Label strips Top / Heart / Base. • Top: bergamot FCF • Heart: vanilla oleoresin or vanilla FO • Base: cedarwood Atlas (optional +1 benzoin…
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 7/28
Exact Vanilla Soft recipe for 10 ml at 15%
Exact Vanilla Soft recipe for 10 ml at 15% — step 7 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). Scent portion = 1.5 ml total. Using a 20 drops/ml dropper: • Bergamot FCF: 8 drops (0.40 ml) • Vanilla oleoresin/FO: 16 drops (0.80 ml) •…
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 8/28
Add scent oils to bottle A first
Add scent oils to bottle A first — step 8 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). Put roller bottle A on the scale if possible. Add the scent drops/weights first.
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✨ Beauty & Grooming · Step 9/28
Top with 8.5 ml carrier
Top with 8.5 ml carrier — step 9 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). Fill with jojoba/FCO to the shoulder — about 8.5 ml. Insert roller ball and cap. Invert gently 20 times (do not violent-shake).
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 10/28
Quick nose check before aging
Quick nose check before aging — step 10 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). Smell from 15 cm away. Should read vanilla-forward with citrus lift. If only sugar, you under-dosed cedar — note +2 cedar drops for Batch 2…
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 11/28
Strip-map Citrus Green Fresh
Strip-map Citrus Green Fresh — step 11 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). • Top: sweet orange + bergamot FCF • Heart: lavender or petitgrain (lavender is easier to buy) • Base: frankincense OR a drop of vetiver…
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 12/28
Exact Citrus Green recipe for 10 ml at 15%
Exact Citrus Green recipe for 10 ml at 15% — step 12 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). At 20 drops/ml: • Sweet orange: 10 drops (0.50 ml) • Bergamot FCF: 8 drops (0.40 ml) • Lavender: 6 drops (0.30 ml) • Frankincense: 6 drops…
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 13/28
Balance check on strips before bottling
Balance check on strips before bottling — step 13 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). Dip a combined strip. Wait 30 seconds. If bathroom-cleaner: remove 2 lavender drops from the plan and add 2 sweet orange.
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 14/28
Fill bottle B: 1.5 ml scent + 8.5 ml carrier
Fill bottle B: 1.5 ml scent + 8.5 ml carrier — step 14 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). Scent first, carrier second, roller in, invert 20×. Label: Citrus Green Fresh — 15% — date — Day or Night-only.
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 15/28
Compare A vs B briefly
Compare A vs B briefly — step 15 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). Nose reset 30 seconds. A should be warm sweet; B should be bright clean.
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 16/28
Strip-map Warm Amber Wood
Strip-map Warm Amber Wood — step 16 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). • Base-forward: cedarwood + frankincense • Softener: vanilla or benzoin • Optional lift: 1–2 drops sweet orange on a strip Target: cozy…
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 17/28
Exact Warm Amber Wood recipe for 10 ml at 15%
Exact Warm Amber Wood recipe for 10 ml at 15% — step 17 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). At 20 drops/ml: • Cedarwood Atlas: 10 drops (0.50 ml) • Frankincense: 8 drops (0.40 ml) • Vanilla oleoresin/FO or benzoin: 8 drops (0.40…
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 18/28
Fill bottle C at 15%
Fill bottle C at 15% — step 18 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). 1.5 ml scent + 8.5 ml carrier. Cap. Invert 20×. Label: Warm Amber Wood — 15% — date — Evening.
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 19/28
Three-bottle lineup QC
Three-bottle lineup QC — step 19 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). Line A B C. Smell each after a nose reset. Pass if: • A = soft vanilla • B = bright citrus-green • C = warm wood/amber Fail if two bottles…
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 20/28
Sensitive-skin alternate at 10%
Sensitive-skin alternate at 10% — step 20 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). If you know you react easily, make a fourth practice bottle later at 10%: 1.0 ml of the same drop ratios scaled down + 9.0 ml carrier.
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 21/28
Age all three rollers 48 hours in the dark
Age all three rollers 48 hours in the dark — step 21 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). Place A B C in a drawer or box away from heat and light. Do not open repeatedly. Minimum 48 hours. Many oil blends improve through day 5–7.
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)

✨ Beauty & Grooming · Step 22/28
Day-3 invert and inspect
Day-3 invert and inspect — step 22 of 28 in DIY Perfume Oil Rollerballs (Alcohol-Free). After 48 hours, invert each bottle 10 times. Check for: • Clear or uniformly cloudy (OK for some resins) • No water droplets • Roller not…
From course: DIY Perfume Oil Rollerballs (Alcohol-Free)
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