Crazy Skin Beer Yeast
Crazy Skin's Beer Yeast line is a Korean hair care range built around beer yeast extract, a fermentation-derived ingredient associated with scalp nourishment and hair strength. Skinsli carries 12 products from the range: the Beer Yeast Shampoo (300g), the Beer Yeast Centella Shampoo (combining yeast and centella actives), several Hair Pack formats (single-use 2-opening, 200g jars, and 4-piece sets), and value bundle configurations ranging from a shampoo + hair pack duo up to a 6 shampoo + 4 hair pack + 18 pouch bundle.
By Skinsli editorial Updated
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Buying guide
Crazy Skin Beer Yeast Hair Care: Shampoos, Hair Packs, and Bundle Guide
Crazy Skin's Beer Yeast range is a Korean hair care line anchored by fermented beer yeast extract. The line pairs a clarifying shampoo step with a nourishing hair pack, and the full range at skinsli offers 12 products spanning individual items and multi-piece bundles. This guide explains the beer yeast ingredient, the difference between the shampoo variants, the hair pack formats, and how to choose the right bundle size for your routine.
What beer yeast extract does for hair
Beer yeast, derived from Saccharomyces cerevisiae used in fermentation, is rich in B-vitamins (particularly biotin, B1, B2, and B5), amino acids, and beta-glucans. In hair care, these components address two concerns: scalp health and hair fiber strength. B-vitamins support the keratin production cycle that gives hair its tensile strength; amino acids replenish surface damage on the hair shaft; beta-glucans have anti-inflammatory properties relevant to irritated or flaky scalps.
The fermentation process that produces beer yeast also generates smaller molecular compounds that penetrate the cuticle more readily than unfermented equivalents. Korean hair care has drawn on fermented ingredients since at least the early 2000s, applying the same fermentation logic used in facial skincare (where galactomyces and Lactobacillus ferments are well established) to scalp and hair products.
Beer Yeast Shampoo 300g: the core cleansing step
The Beer Yeast Shampoo at 300g is the foundational product in the Crazy Skin range. At 300g, the format is equivalent to a standard 300ml bottle, sized for roughly four to six weeks of daily washing for one person. The shampoo is positioned for regular scalp cleansing with yeast nourishment built into the formula rather than added as a post-wash step.
The formula cleansing base appears to target the balance point between effective oil removal and not stripping the scalp - common in Korean scalp-care shampoos that aim to reduce dandruff and sensitivity while maintaining natural moisture. This makes it different from the dry scalp-targeted formulas that use heavier conditioning agents, and from the aggressive clarifying shampoos that prioritize residue removal over scalp comfort.
Beer Yeast Centella Shampoo 300g: when to choose the centella variant
The Beer Yeast Centella Shampoo adds centella asiatica to the base beer yeast formula. Centella is well documented in Korean skincare for its anti-inflammatory and scalp-soothing properties - the same mechanism that makes it popular in facial cica products applies to the scalp. The Centella variant is the better choice if your scalp is reactive, tends toward redness or flakiness, or if you have experienced irritation from regular shampoos in the past.
Both shampoos are 300g and can be used interchangeably in the two-step routine with the hair pack. If scalp sensitivity is not a concern, the original Beer Yeast Shampoo is the simpler formula; if your scalp needs both nourishment and calming, the Centella version addresses both needs in one step.
Hair pack formats: 2-opening, 200g jar, and 4-piece sets
The Crazy Skin Beer Yeast hair pack is available in three packaging formats at skinsli. The Beer Yeast Hair Pack 2 Opening is a small dual-compartment sachet for single-use application, useful for travel or as an initial trial before committing to a larger jar. The Beer Yeast Treatment Hair Pack and Beer Yeast Hair Pack in 200g jar format are the standard at-home size, providing approximately eight to ten full-application treatments.
The 4-piece Hair Pack 200g set gives four individual jars, which covers roughly a month of twice-weekly use for one person or the same timeline for a two-person household sharing the product. Hair packs applied twice weekly provide more consistent nourishment than irregular deep conditioning; the 4-piece set's quantity aligns with about eight weeks of that schedule.
The two-step Beer Yeast routine: shampoo plus hair pack
Crazy Skin positions Beer Yeast as a paired shampoo-plus-treatment system. The routine: wash with the Beer Yeast Shampoo, rinse, then apply the Beer Yeast Hair Pack to towel-damp hair from mid-length to ends. Leave the pack on for five to ten minutes - for the Treatment Hair Pack formulation, ten to fifteen minutes is appropriate given its more intensive active concentration - then rinse with cool water to seal the cuticle.
Daily use of the shampoo with twice-weekly hair pack application is the practical schedule for most hair types. If your hair is particularly dry or damage-prone from heat styling, using the hair pack three times per week during the first month provides a faster repair cycle. The 2-opening single-use sachet format is also convenient as an intensive overnight treatment: apply the pack, cover hair with a cap, and rinse in the morning.
Choosing the right bundle: from duo sets to the 6+4+18 mega bundle
Skinsli carries the Crazy Skin Beer Yeast range in several bundle configurations. The Set of 2 types of beer yeast and the Shampoo 300g + Hair Pack 200g 1 set are entry-level combinations for trialing the complete routine. The 2 shampoos + 2 hair packs 4 sets steps up to household-quantity use. At the top end, the Set of 10 types and the 6 Shampoo + 4 hair packs + 18 pouches bundle are bulk purchase formats suited for extended household stocking or small-scale resale.
For a single person starting with the line, the shampoo + hair pack duo is the most logical starting point: it covers one to two months of the full routine at a single-person daily/twice-weekly cadence. For households using both products, the 2+2 set extends that to three to four months. The 18-pouch version of the mega bundle adds single-use sachets, which are practical for travel or gym bag use.
Which hair types and concerns the Beer Yeast line addresses
The Beer Yeast line targets three overlapping concerns: scalp health, hair breakage/thinning, and dullness from product buildup or environmental damage. The B-vitamin and amino acid profile suits hair that breaks easily or sheds more than usual. The scalp-active component addresses oil imbalance and inflammation that can contribute to flaking and slow growth.
The shampoo formula is not a heavy moisturizing formula, so it works across hair types including fine and oily hair - thick or coarse hair may need the hair pack more frequently to balance the cleansing step. The Centella variant is the automatic choice for scalp-sensitive types regardless of hair texture. Color-treated hair can use the line without concern for formula-level color interference; beer yeast and centella are not bleaching or oxidizing actives.
Storage and product use timelines
The 300g shampoo bottles and 200g hair pack jars should be stored in a cool, dry location away from direct sunlight. For the jar-format hair pack, keeping a clean spatula on hand rather than finger-dipping reduces contamination and extends shelf life. Korean cosmetic products are required to display a period-after-opening (PAO) symbol, typically shown as an open jar icon with a number of months; for a 200g hair pack, the usual PAO is twelve months after first opening.
The single-use sachets (18-pouch bundle component) have longer shelf life than opened jars because each sachet is individually sealed. These make good long-term stock items or gifts for people who have not tried the range yet.
FAQ
Frequently asked questions
FAQ
Frequently asked questions
What is the difference between Crazy Skin Beer Yeast Shampoo and the Beer Yeast Centella Shampoo?
Both shampoos are 300g and use beer yeast extract as the primary active. The Centella variant adds centella asiatica to the formula, which brings additional anti-inflammatory and scalp-soothing properties. If your scalp is reactive, prone to redness, or tends toward flakiness and irritation, choose the Centella Shampoo. If your main concern is hair nourishment and scalp balance without a specific sensitivity issue, the original Beer Yeast Shampoo is the simpler choice.
How do you use the Crazy Skin Beer Yeast Hair Pack 2 Opening sachet?
The 2 Opening Hair Pack is a dual-compartment single-use sachet. Open both compartments, mix the contents if the format uses a two-part activation system, or apply each part sequentially per the instructions on the sachet. Apply to towel-damp hair after shampooing, working from mid-length to ends. Leave on for five to ten minutes, then rinse thoroughly. The sachet format is useful for travel or for an intensive overnight treatment under a shower cap.
What does the Crazy Skin Beer Yeast Set of 10 types include?
The Set of 10 types bundles ten beer yeast products from the Crazy Skin range. Based on the available product line, this likely mixes shampoo bottles, hair pack jars, and single-use sachet formats. The exact contents are confirmed on the product listing page. This set is a bulk purchase format suited for households with multiple users, extended stocking, or people who want to compare multiple products in the line at once.
Can Crazy Skin Beer Yeast Shampoo help with hair loss or thinning?
Beer yeast extract contains B-vitamins (including biotin), amino acids, and beta-glucans that support scalp health and hair fiber strength. These components are associated with healthier conditions for hair growth, but the Beer Yeast Shampoo is a cosmetic product, not a medical hair loss treatment. It can reduce visible thinning related to breakage and scalp inflammation, but it will not address androgenetic alopecia (pattern hair loss) on its own. For clinical-level hair thinning, a dermatologist consultation alongside a supporting shampoo like this is the appropriate approach.
How often should I use the Crazy Skin Beer Yeast Treatment Hair Pack 200g?
The Beer Yeast Treatment Hair Pack is an intensive conditioning step; twice-weekly application is the standard recommendation for ongoing use. For hair that is heavily damaged from heat styling or chemical treatment, three times per week for the first four to six weeks provides a faster recovery cycle. After that initial phase, dropping back to twice weekly maintains the results without over-conditioning fine hair. The 200g jar at twice-weekly use covers approximately five to six weeks of treatments for one person.
What are the 18 pouches in the Crazy Skin 6 shampoo + 4 hair packs + 18 pouches bundle?
The 18 pouches are single-use Beer Yeast hair pack sachets included in the large bundle. They serve as a portable complement to the full-size jars - convenient for travel, gym use, or as standalone intensive treatments on nights when you want a deeper pack without opening the main jar. This bundle format makes sense for household bulk purchasing or as a gifting set where the sachets work as shareable single-use items.
Is the Crazy Skin Beer Yeast Shampoo safe for color-treated or bleached hair?
Yes. Beer yeast extract and centella asiatica are not bleaching agents or oxidizers, so neither variant of the shampoo will strip or alter hair color. The formula's B-vitamins and amino acids are beneficial for color-treated hair, which tends to have a more damaged cuticle and benefits from strengthening actives. The hair pack is also safe for color-treated hair and helps restore the cuticle condition that color processing disrupts.