mikethair

Preservative queries for a hair conditioner. (1) I am considering using Optiphen ND. Is anyone aware of issues with this preservative if the recipe includes Cetrimonium Chloride (cationic conditioner) and Hydrolyzed Soy Protein? I remember reading somewhere that these may inactivate the Optiphen ND. (2) As an alternative I am considering using Phenoxyethanol & Benzyl Alcohol. Any opinions/advice on these? (3) Another option is Potassium sorbate & Phenoxyethanol. Again, any opinions? Thanks

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mikethair
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  • We manufacture and ship internationally. You must comply with the cosmetics regulations in the destination country, and have your products registered in the destination country.
  • If you are making true soap (liquid and solid) by saponifying plant oils, then preservatives are not required. ISO 29621 "Cosmetics — Microbiology — Guidelines for the risk assessment and identification of microbiologically low-risk products&qu…
  • (Quote) 
 It depends on the ingredient. If liquid, it can be simply poured into a stainless steel pot for weighing. If more solid, use a suitable scoop. You should read up on GMP processes and conditions to understand the conditions under wh…
  • In my opinion, it would be a challenge if attempting this if your production area is not GMP certified.  Ours is, and we work with this size container on a daily basis.
  • My approach would be first to ensure that I have detailed Batch Manufacturing Records (BMR), including in-process testing results. Second, be consistent with your homogenizer. Produce a minimum size batch using the same homogenizer as your larger ba…
  • We successfully do a lot of liquid soap in large vats. A few points based on the comments above:* Why would you add a preservative? Liquid soaps are self-preserving and are included in the ISO 29621 Cosmetics — Microbiology — Guidelines for the risk…
  • We are based in Malaysia and can confirm that the best source of info is the ASEAN Cosmetics Guidelines https://www.npra.gov.my/images/Guidelines_Central/Guidelines_on_Cosmetic/Annex_I_Part_5_.pdf In particular, and to answer your question, you sh…
  • Agree @Perry    We have entered the "Post Truth Era," and largely fueled by social media. The borders are blurred between truth and lies, honesty and dishonesty, fiction and nonfiction. And especially in the cosmetics industry. As a scient…
  • And the other side of the story. We produce shampoo by saponifying coconut oil, face wash using olive oil, and body wash using a blend of soya, coconut and palm oils. Yes, the pH is high. No, we see no need to reduce the pH. These products sell well…
  • I'm into transparency, and use my real name, so I'm easy to spot.
  • Probably, yes.
  • Yes, I may be able to help. I'm the chief formulator at Indochine Natural and do a range of OEM/Private Label organic skincare products for other companies.
  • From our experience one of the best repellents is Lemon-scented Eucalyptus (Corymbia citriodora) .  We produced a simple effective relellant using Corymbia citriodora. Well researched, for example, J Am Mosq Control Assoc. 2006 Sep;22(3):507-14.PMD,…
  • If they do not respond to email, forget them. We always email a Purchase Order to our suppliers. It works.
  • "IME more people have issues with EO's as they're plant-based, than quality manufactured fragrances. " It has not been our experience. We manufacture face oils for our own and other local plus international brands. The market niche we capt…
  • We do a lot of liquid soap using various combinations of saponified oils. Once saponified it will be solid, The next step is a dilution. The amount of water used depends on the oils. So for the first batches, it is a matter of trial and error to get…
  • "anti-pollution formulas".... conceptually, moving a bit away from the definition of a cosmetic in my humble opinion. Article 2 of the EU Cosmetics Regulation (Regulation (EC) No. 
1223/2009) incorporates the following definition…
  • We are located in Malaysia and our GMP production facility is ASEAN Cosmetics Guidelines compliant. We export to the USA and Europe. From our experience, the ASEAN Guidelines are certainly closer to the EU requirements. Follow the EU regulations, yo…
  • I would suggest you have someone help you with a Business Vision & Brand Guidelines. Based on your target audience and what you come up with in this branding guideline, the questions you ask will be answered. Important to be consistent in your b…
  • We saponify oils to produce liquid washes with pH around 9.5. We have been producing for about 20 years for our own label and OEM/Private Label. This pH has never been a problem. Going back to my research scientist days a long time ago, I was doing …
  • "Learning to make cosmetics and learning to SELL cosmetics require completely different skill sets. " Agree 100%. We can make products, which consumes most of our time and resources, but a totally different mindset is required to sell. And…
  • We make a lot of soap. And from what you have described, I would be looking first at the "fragrance: 'red berries' 3% ." Do you have a CoA for the fragrance? Is it the same as the previous CoA? 
  • We operate under the ASEAN Cosmetics Guidelines, and they have put together a series of modules. Our staff have a monthly working lunch woking through these. Als, it is a component of our GMP inspections, and the GMP inspectors want to see documente…
  • Good point. As an Australian scientist I could never earn a good living, so moved into other areas. This is one of the issues. Another issue is the source of funding. Often the source will influence findings. And no, it may not be good science. This…
  • Not sure why you are using Sodium Cocoate. We use this in solid soap formulations. For liquid shampoo we use Potassium Cocoate (saponified coconut oil). We have zero problems with cloudiness with Potassium Cocoate . No, we do not use a preservat…
  • We refuse to deal via alibaba. Instead, we buy direct from the manufacturer. It is not difficult to find these companies. Best approach is to ask others in your country for recommendations.
  • @Docaashu, are you able to cite scientific literature indicating that "As a doctor, I know the fact alkaline pH is not good for skin. Alkaline property of soaps increase many health risks including fungal infections, eczema and psoriasis"?
  • (Quote) What brand and product are you referring to? Thanks
  • (Quote) What would be the point of switching to mikrocount combi? Thanks
  • Thanks @ozgirl    All suggestions done, and all checked out. The sample results quoted in my post are from an SGS lab. I need to work through the distributor of Microcount dipslides here in Malaysia. Who then contact the Schulke technical people i…
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