Colorful packaging boxes of Prep U arranged artistically on a vibrant geometric background.

Clear Skin, Naturally—Every Day Starts with Castile

Prep U’s Castile Bars deliver gentle, plant-based cleansing for teens and active skin. Tackle breakouts, sweat, and sensitive skin—no harsh chemicals, just pure, effective care.

Compare Prep U Cleansing Bars: Find the Best Soap for Your Face & Skin

Choosing the right soap bar can make all the difference for your skin—especially for teens and young adults dealing with breakouts, sensitivity, or dryness. At Prep U, we craft each cleansing bar with clean, plant-based ingredients and no harsh chemicals, so you can feel confident in your daily routine. Use this comparison guide to discover which bar is the best fit for your face and body.

Quick Comparison Chart

Bar Name	Best For	Key Ingredients	Scent Profile	Top Benefits	Vegan/Eco-Friendly
Tea Tree Cleansing Castile Bar	Acne-prone, oily skin	Tea tree oil, coconut, olive, castor, shea	Herbal, fresh	Deep cleanses, reduces breakouts, clarifies	Yes
Sandalwood Cleansing Bar	Dry, sensitive, easily irritated skin	Sandalwood, shea, coconut, olive, castor	Warm, woodsy, calming	Hydrates, soothes, calms redness	Yes
Peppermint + Oats Cleansing Bar	Normal, combination, dull skin	Peppermint, oats, coconut, olive, castor, shea	Cool, minty, refreshing	Gently exfoliates, balances, refreshes	Yes
Alpine Shave Bar	Shaving, sensitive, multi-use	French green clay, pine, spruce, fir, coconut, olive, castor, shea	Crisp, outdoorsy, clean	Smooth shave, clarifies, deep cleans, multi-use	Yes
Charcoal Face & Body Cleansing Bar	Congested, acne-prone, oily skin	Charcoal, bentonite clay, coconut, olive, castor, shea	Earthy, clean	Exfoliates, detoxifies, unclogs pores, gentle enough for daily use	Yes

Meet the Bars

Prep U Tea Tree Cleansing Bar for acne-prone teen skin

Tea Tree Cleansing Castile Bar

Best For: Acne-prone or oily skin
Key Ingredients: Tea tree oil, coconut oil, olive oil, castor oil, shea butter
Scent: Herbal, fresh
Why You’ll Love It:

Deep cleanses pores and helps reduce breakouts
Clarifies without over-drying
Perfect for teens with blemish-prone skin
Vegan & Eco-Friendly: Yes

Shop Tea Tree Cleansing Castile Bar

Sandalwood Cleansing Bar

Best For: Dry, sensitive, or easily irritated skin
Key Ingredients: Sandalwood essential oil, shea butter, coconut oil, olive oil, castor oil
Scent: Warm, woodsy, calming
Why You’ll Love It:

Intense hydration and skin soothing
Calms redness and irritation
Leaves skin soft, never stripped
Vegan & Eco-Friendly: Yes

Shop Sandalwood Cleansing Bar

Peppermint + Oats Cleansing Bar

Best For: Normal, combination, or dull skin
Key Ingredients: Peppermint essential oil, oats, coconut oil, olive oil, castor oil, shea butter
Scent: Cool, minty, refreshing
Why You’ll Love It:

Gently exfoliates and refreshes
Balances oil and soothes skin
Leaves face and body feeling clean and energized
Vegan & Eco-Friendly: Yes

Shop Peppermint + Oats Cleansing Bar

Alpine Shave Bar

Best For: Shaving, sensitive skin, multi-use
Key Ingredients: French green clay, pine, spruce, fir essential oils, coconut oil, olive oil, castor oil, shea butter
Scent: Crisp, outdoorsy, clean
Why You’ll Love It:

Cushions skin for a smooth, irritation-free shave
Clarifies and detoxifies with French green clay
Invigorating outdoorsy scent
Doubles as a face and body cleanser
Vegan & Eco-Friendly: Yes

Shop Alpine Shave Bar

Charcoal Face & Body Exfoliating Bar

Best For: Congested, acne-prone, oily skin
Key Ingredients: Activated charcoal, bentonite clay, coconut oil, olive oil, castor oil, shea butter, walnut hull
Scent: Unscented
Why You’ll Love It:

Exfoliates and detoxifies for a deep clean
Unclogs pores and removes buildup
Helps control excess oil and minimize breakouts
Gentle enough for daily use on face and body
Vegan & Eco-Friendly: Yes

Shop Charcoal Face & Body Cleansing Bar

Frequently Asked Questions

How do I choose the best bar for my skin type?
Consider your top skin concerns—breakouts, dryness, sensitivity, or need for a multi-use bar. Use the chart above for quick guidance.

Can I use these bars on both my face and body?
Yes! All Prep U cleansing bars are formulated to be gentle enough for facial skin and effective enough for body cleansing.

Are Prep U bars safe for teens and young adults?
Absolutely. Every bar is made with plant-based, non-toxic ingredients, and is free from sulfates, parabens, aluminum, synthetic fragrances, and dyes.

Are all bars vegan and cruelty-free?
Yes, every Prep U cleansing bar is vegan, cruelty-free, and Leaping Bunny certified.

How long does each bar last?
With daily use, each bar typically lasts 4–6 weeks. Store in a dry spot between uses for best results.

What if I have more than one skin concern?
You can rotate bars or use different ones for face and body. For example, use Charcoal or Tea Tree on your face and Sandalwood on your body, or alternate as needed.

Which bar is best for shaving?
The Alpine Shave Bar is specially formulated for shaving and sensitive skin, but all bars provide a creamy lather that works for shaving in a pinch.